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提交 d550d98d 编写于 作者: P Patrick Mochel 提交者： Len Brown
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ACPI: delete tracing macros from drivers/acpi/*.c 

Signed-off-by: NLen Brown <len.brown@intel.com>
上级 d7fa2589
展开全部 隐藏空白更改
内联 并排
Showing with 862 addition and 1187 deletion
drivers/acpi/ac.c
浏览文件 @ d550d98d
......@@ -84,19 +84,18 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_ac_get_state");
if (!ac)
return_VALUE(-EINVAL);
return -EINVAL;
status = acpi_evaluate_integer(ac->handle, "_PSR", NULL, &ac->state);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state"));
ac->state = ACPI_AC_STATUS_UNKNOWN;
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -109,14 +108,13 @@ static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_ac *ac = (struct acpi_ac *)seq->private;
ACPI_FUNCTION_TRACE("acpi_ac_seq_show");
if (!ac)
return_VALUE(0);
return 0;
if (acpi_ac_get_state(ac)) {
seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
return_VALUE(0);
return 0;
}
seq_puts(seq, "state: ");
......@@ -132,7 +130,7 @@ static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
break;
}
return_VALUE(0);
return 0;
}
static int acpi_ac_open_fs(struct inode *inode, struct file *file)
......@@ -144,13 +142,12 @@ static int acpi_ac_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_ac_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_ac_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
}
......@@ -158,19 +155,18 @@ static int acpi_ac_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_AC_FILE_STATE,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_ac_fops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
return_VALUE(0);
return 0;
}
static int acpi_ac_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_ac_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device));
......@@ -179,7 +175,7 @@ static int acpi_ac_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -191,13 +187,12 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
struct acpi_ac *ac = (struct acpi_ac *)data;
struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_ac_notify");
if (!ac)
return_VOID;
return;
if (acpi_bus_get_device(ac->handle, &device))
return_VOID;
return;
switch (event) {
case ACPI_AC_NOTIFY_STATUS:
......@@ -210,7 +205,7 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static int acpi_ac_add(struct acpi_device *device)
......@@ -219,14 +214,13 @@ static int acpi_ac_add(struct acpi_device *device)
acpi_status status = AE_OK;
struct acpi_ac *ac = NULL;
ACPI_FUNCTION_TRACE("acpi_ac_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ac = kmalloc(sizeof(struct acpi_ac), GFP_KERNEL);
if (!ac)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(ac, 0, sizeof(struct acpi_ac));
ac->handle = device->handle;
......@@ -260,7 +254,7 @@ static int acpi_ac_add(struct acpi_device *device)
kfree(ac);
}
return_VALUE(result);
return result;
}
static int acpi_ac_remove(struct acpi_device *device, int type)
......@@ -268,10 +262,9 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
acpi_status status = AE_OK;
struct acpi_ac *ac = NULL;
ACPI_FUNCTION_TRACE("acpi_ac_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
ac = (struct acpi_ac *)acpi_driver_data(device);
......@@ -282,38 +275,36 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
kfree(ac);
return_VALUE(0);
return 0;
}
static int __init acpi_ac_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_ac_init");
acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
if (!acpi_ac_dir)
return_VALUE(-ENODEV);
return -ENODEV;
acpi_ac_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_ac_driver);
if (result < 0) {
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static void __exit acpi_ac_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_ac_exit");
acpi_bus_unregister_driver(&acpi_ac_driver);
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
return_VOID;
return;
}
module_init(acpi_ac_init);
......
drivers/acpi/acpi_memhotplug.c
浏览文件 @ d550d98d
......@@ -85,12 +85,11 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
struct acpi_resource *resource = NULL;
struct acpi_resource_address64 address64;
ACPI_FUNCTION_TRACE("acpi_memory_get_device_resources");
/* Get the range from the _CRS */
status = acpi_get_current_resources(mem_device->handle, &buffer);
if (ACPI_FAILURE(status))
return_VALUE(-EINVAL);
return -EINVAL;
resource = (struct acpi_resource *)buffer.pointer;
status = acpi_resource_to_address64(resource, &address64);
......@@ -106,7 +105,7 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
}
acpi_os_free(buffer.pointer);
return_VALUE(0);
return 0;
}
static int
......@@ -118,7 +117,6 @@ acpi_memory_get_device(acpi_handle handle,
struct acpi_device *device = NULL;
struct acpi_device *pdevice = NULL;
ACPI_FUNCTION_TRACE("acpi_memory_get_device");
if (!acpi_bus_get_device(handle, &device) && device)
goto end;
......@@ -126,14 +124,14 @@ acpi_memory_get_device(acpi_handle handle,
status = acpi_get_parent(handle, &phandle);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Cannot find acpi parent"));
return_VALUE(-EINVAL);
return -EINVAL;
}
/* Get the parent device */
status = acpi_bus_get_device(phandle, &pdevice);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device"));
return_VALUE(-EINVAL);
return -EINVAL;
}
/*
......@@ -143,29 +141,28 @@ acpi_memory_get_device(acpi_handle handle,
status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus"));
return_VALUE(-EINVAL);
return -EINVAL;
}
end:
*mem_device = acpi_driver_data(device);
if (!(*mem_device)) {
printk(KERN_ERR "\n driver data not found");
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
{
unsigned long current_status;
ACPI_FUNCTION_TRACE("acpi_memory_check_device");
/* Get device present/absent information from the _STA */
if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->handle, "_STA",
NULL, &current_status)))
return_VALUE(-ENODEV);
return -ENODEV;
/*
* Check for device status. Device should be
* present/enabled/functioning.
......@@ -173,16 +170,15 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
if (!((current_status & ACPI_MEMORY_STA_PRESENT)
&& (current_status & ACPI_MEMORY_STA_ENABLED)
&& (current_status & ACPI_MEMORY_STA_FUNCTIONAL)))
return_VALUE(-ENODEV);
return -ENODEV;
return_VALUE(0);
return 0;
}
static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
{
int result;
ACPI_FUNCTION_TRACE("acpi_memory_enable_device");
/* Get the range from the _CRS */
result = acpi_memory_get_device_resources(mem_device);
......@@ -213,7 +209,6 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
union acpi_object arg;
unsigned long current_status;
ACPI_FUNCTION_TRACE("acpi_memory_powerdown_device");
/* Issue the _EJ0 command */
arg_list.count = 1;
......@@ -225,20 +220,20 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
/* Return on _EJ0 failure */
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "_EJ0 failed"));
return_VALUE(-ENODEV);
return -ENODEV;
}
/* Evalute _STA to check if the device is disabled */
status = acpi_evaluate_integer(mem_device->handle, "_STA",
NULL, &current_status);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
/* Check for device status. Device should be disabled */
if (current_status & ACPI_MEMORY_STA_ENABLED)
return_VALUE(-EINVAL);
return -EINVAL;
return_VALUE(0);
return 0;
}
static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
......@@ -247,7 +242,6 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
u64 start = mem_device->start_addr;
u64 len = mem_device->length;
ACPI_FUNCTION_TRACE("acpi_memory_disable_device");
/*
* Ask the VM to offline this memory range.
......@@ -255,7 +249,7 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
*/
result = remove_memory(start, len);
if (result)
return_VALUE(result);
return result;
/* Power-off and eject the device */
result = acpi_memory_powerdown_device(mem_device);
......@@ -274,7 +268,6 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
struct acpi_memory_device *mem_device;
struct acpi_device *device;
ACPI_FUNCTION_TRACE("acpi_memory_device_notify");
switch (event) {
case ACPI_NOTIFY_BUS_CHECK:
......@@ -287,7 +280,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
"\nReceived DEVICE CHECK notification for device\n"));
if (acpi_memory_get_device(handle, &mem_device)) {
printk(KERN_ERR PREFIX "Cannot find driver data\n");
return_VOID;
return;
}
if (!acpi_memory_check_device(mem_device)) {
......@@ -329,7 +322,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static int acpi_memory_device_add(struct acpi_device *device)
......@@ -337,14 +330,13 @@ static int acpi_memory_device_add(struct acpi_device *device)
int result;
struct acpi_memory_device *mem_device = NULL;
ACPI_FUNCTION_TRACE("acpi_memory_device_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
mem_device = kmalloc(sizeof(struct acpi_memory_device), GFP_KERNEL);
if (!mem_device)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(mem_device, 0, sizeof(struct acpi_memory_device));
mem_device->handle = device->handle;
......@@ -356,7 +348,7 @@ static int acpi_memory_device_add(struct acpi_device *device)
result = acpi_memory_get_device_resources(mem_device);
if (result) {
kfree(mem_device);
return_VALUE(result);
return result;
}
/* Set the device state */
......@@ -364,22 +356,21 @@ static int acpi_memory_device_add(struct acpi_device *device)
printk(KERN_INFO "%s \n", acpi_device_name(device));
return_VALUE(result);
return result;
}
static int acpi_memory_device_remove(struct acpi_device *device, int type)
{
struct acpi_memory_device *mem_device = NULL;
ACPI_FUNCTION_TRACE("acpi_memory_device_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
mem_device = (struct acpi_memory_device *)acpi_driver_data(device);
kfree(mem_device);
return_VALUE(0);
return 0;
}
/*
......@@ -392,16 +383,15 @@ static acpi_status is_memory_device(acpi_handle handle)
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info;
ACPI_FUNCTION_TRACE("is_memory_device");
status = acpi_get_object_info(handle, &buffer);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
return status;
info = buffer.pointer;
if (!(info->valid & ACPI_VALID_HID)) {
acpi_os_free(buffer.pointer);
return_ACPI_STATUS(AE_ERROR);
return AE_ERROR;
}
hardware_id = info->hardware_id.value;
......@@ -410,7 +400,7 @@ static acpi_status is_memory_device(acpi_handle handle)
status = AE_ERROR;
acpi_os_free(buffer.pointer);
return_ACPI_STATUS(status);
return status;
}
static acpi_status
......@@ -419,18 +409,17 @@ acpi_memory_register_notify_handler(acpi_handle handle,
{
acpi_status status;
ACPI_FUNCTION_TRACE("acpi_memory_register_notify_handler");
status = is_memory_device(handle);
if (ACPI_FAILURE(status)){
ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
return_ACPI_STATUS(AE_OK); /* continue */
return AE_OK; /* continue */
}
status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
acpi_memory_device_notify, NULL);
/* continue */
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
static acpi_status
......@@ -439,19 +428,18 @@ acpi_memory_deregister_notify_handler(acpi_handle handle,
{
acpi_status status;
ACPI_FUNCTION_TRACE("acpi_memory_deregister_notify_handler");
status = is_memory_device(handle);
if (ACPI_FAILURE(status)){
ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
return_ACPI_STATUS(AE_OK); /* continue */
return AE_OK; /* continue */
}
status = acpi_remove_notify_handler(handle,
ACPI_SYSTEM_NOTIFY,
acpi_memory_device_notify);
return_ACPI_STATUS(AE_OK); /* continue */
return AE_OK; /* continue */
}
static int __init acpi_memory_device_init(void)
......@@ -459,12 +447,11 @@ static int __init acpi_memory_device_init(void)
int result;
acpi_status status;
ACPI_FUNCTION_TRACE("acpi_memory_device_init");
result = acpi_bus_register_driver(&acpi_memory_device_driver);
if (result < 0)
return_VALUE(-ENODEV);
return -ENODEV;
status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
......@@ -474,17 +461,16 @@ static int __init acpi_memory_device_init(void)
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "walk_namespace failed"));
acpi_bus_unregister_driver(&acpi_memory_device_driver);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static void __exit acpi_memory_device_exit(void)
{
acpi_status status;
ACPI_FUNCTION_TRACE("acpi_memory_device_exit");
/*
* Adding this to un-install notification handlers for all the device
......@@ -500,7 +486,7 @@ static void __exit acpi_memory_device_exit(void)
acpi_bus_unregister_driver(&acpi_memory_device_driver);
return_VOID;
return;
}
module_init(acpi_memory_device_init);
......
drivers/acpi/battery.c
浏览文件 @ d550d98d
......@@ -132,17 +132,16 @@ acpi_battery_get_info(struct acpi_battery *battery,
struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_get_info");
if (!battery || !bif)
return_VALUE(-EINVAL);
return -EINVAL;
/* Evalute _BIF */
status = acpi_evaluate_object(battery->handle, "_BIF", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return_VALUE(-ENODEV);
return -ENODEV;
}
package = (union acpi_object *)buffer.pointer;
......@@ -177,7 +176,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
if (!result)
(*bif) = (struct acpi_battery_info *)data.pointer;
return_VALUE(result);
return result;
}
static int
......@@ -193,17 +192,16 @@ acpi_battery_get_status(struct acpi_battery *battery,
struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_get_status");
if (!battery || !bst)
return_VALUE(-EINVAL);
return -EINVAL;
/* Evalute _BST */
status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return_VALUE(-ENODEV);
return -ENODEV;
}
package = (union acpi_object *)buffer.pointer;
......@@ -238,7 +236,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
if (!result)
(*bst) = (struct acpi_battery_status *)data.pointer;
return_VALUE(result);
return result;
}
static int
......@@ -248,25 +246,24 @@ acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
ACPI_FUNCTION_TRACE("acpi_battery_set_alarm");
if (!battery)
return_VALUE(-EINVAL);
return -EINVAL;
if (!battery->flags.alarm)
return_VALUE(-ENODEV);
return -ENODEV;
arg0.integer.value = alarm;
status = acpi_evaluate_object(battery->handle, "_BTP", &arg_list, NULL);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", (u32) alarm));
battery->alarm = alarm;
return_VALUE(0);
return 0;
}
static int acpi_battery_check(struct acpi_battery *battery)
......@@ -277,18 +274,17 @@ static int acpi_battery_check(struct acpi_battery *battery)
struct acpi_device *device = NULL;
struct acpi_battery_info *bif = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_check");
if (!battery)
return_VALUE(-EINVAL);
return -EINVAL;
result = acpi_bus_get_device(battery->handle, &device);
if (result)
return_VALUE(result);
return result;
result = acpi_bus_get_status(device);
if (result)
return_VALUE(result);
return result;
/* Insertion? */
......@@ -300,7 +296,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
result = acpi_battery_get_info(battery, &bif);
if (result)
return_VALUE(result);
return result;
battery->flags.power_unit = bif->power_unit;
battery->trips.warning = bif->design_capacity_warning;
......@@ -324,7 +320,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
battery->flags.present = device->status.battery_present;
return_VALUE(result);
return result;
}
/* --------------------------------------------------------------------------
......@@ -339,7 +335,6 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
struct acpi_battery_info *bif = NULL;
char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_info");
if (!battery)
goto end;
......@@ -409,7 +404,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
end:
kfree(bif);
return_VALUE(0);
return 0;
}
static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
......@@ -424,7 +419,6 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
struct acpi_battery_status *bst = NULL;
char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_state");
if (!battery)
goto end;
......@@ -487,7 +481,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
end:
kfree(bst);
return_VALUE(0);
return 0;
}
static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
......@@ -500,7 +494,6 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
struct acpi_battery *battery = (struct acpi_battery *)seq->private;
char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_alarm");
if (!battery)
goto end;
......@@ -525,7 +518,7 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units);
end:
return_VALUE(0);
return 0;
}
static ssize_t
......@@ -538,25 +531,24 @@ acpi_battery_write_alarm(struct file *file,
struct seq_file *m = (struct seq_file *)file->private_data;
struct acpi_battery *battery = (struct acpi_battery *)m->private;
ACPI_FUNCTION_TRACE("acpi_battery_write_alarm");
if (!battery || (count > sizeof(alarm_string) - 1))
return_VALUE(-EINVAL);
return -EINVAL;
if (!battery->flags.present)
return_VALUE(-ENODEV);
return -ENODEV;
if (copy_from_user(alarm_string, buffer, count))
return_VALUE(-EFAULT);
return -EFAULT;
alarm_string[count] = '\0';
result = acpi_battery_set_alarm(battery,
simple_strtoul(alarm_string, NULL, 0));
if (result)
return_VALUE(result);
return result;
return_VALUE(count);
return count;
}
static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
......@@ -593,13 +585,12 @@ static int acpi_battery_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_battery_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
}
......@@ -607,7 +598,7 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_battery_info_ops;
entry->data = acpi_driver_data(device);
......@@ -618,7 +609,7 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_battery_state_ops;
entry->data = acpi_driver_data(device);
......@@ -630,19 +621,18 @@ static int acpi_battery_add_fs(struct acpi_device *device)
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_battery_alarm_ops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
return_VALUE(0);
return 0;
}
static int acpi_battery_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_battery_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_BATTERY_FILE_ALARM,
......@@ -656,7 +646,7 @@ static int acpi_battery_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -668,13 +658,12 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
struct acpi_battery *battery = (struct acpi_battery *)data;
struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_notify");
if (!battery)
return_VOID;
return;
if (acpi_bus_get_device(handle, &device))
return_VOID;
return;
switch (event) {
case ACPI_BATTERY_NOTIFY_STATUS:
......@@ -688,7 +677,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static int acpi_battery_add(struct acpi_device *device)
......@@ -697,14 +686,13 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_status status = 0;
struct acpi_battery *battery = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
battery = kmalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(battery, 0, sizeof(struct acpi_battery));
battery->handle = device->handle;
......@@ -738,7 +726,7 @@ static int acpi_battery_add(struct acpi_device *device)
kfree(battery);
}
return_VALUE(result);
return result;
}
static int acpi_battery_remove(struct acpi_device *device, int type)
......@@ -746,10 +734,9 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
acpi_status status = 0;
struct acpi_battery *battery = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
battery = (struct acpi_battery *)acpi_driver_data(device);
......@@ -761,38 +748,36 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
kfree(battery);
return_VALUE(0);
return 0;
}
static int __init acpi_battery_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_battery_init");
acpi_battery_dir = proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
if (!acpi_battery_dir)
return_VALUE(-ENODEV);
return -ENODEV;
acpi_battery_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_battery_driver);
if (result < 0) {
remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static void __exit acpi_battery_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_battery_exit");
acpi_bus_unregister_driver(&acpi_battery_driver);
remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
return_VOID;
return;
}
module_init(acpi_battery_init);
......
drivers/acpi/bus.c
浏览文件 @ d550d98d
......@@ -60,20 +60,19 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_bus_get_device");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
/* TBD: Support fixed-feature devices */
status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
if (ACPI_FAILURE(status) || !*device) {
ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle));
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_bus_get_device);
......@@ -83,10 +82,9 @@ int acpi_bus_get_status(struct acpi_device *device)
acpi_status status = AE_OK;
unsigned long sta = 0;
ACPI_FUNCTION_TRACE("acpi_bus_get_status");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* Evaluate _STA if present.
......@@ -95,7 +93,7 @@ int acpi_bus_get_status(struct acpi_device *device)
status =
acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
STRUCT_TO_INT(device->status) = (int)sta;
}
......@@ -119,7 +117,7 @@ int acpi_bus_get_status(struct acpi_device *device)
device->pnp.bus_id,
(u32) STRUCT_TO_INT(device->status)));
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_bus_get_status);
......@@ -135,11 +133,10 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
struct acpi_device *device = NULL;
unsigned long psc = 0;
ACPI_FUNCTION_TRACE("acpi_bus_get_power");
result = acpi_bus_get_device(handle, &device);
if (result)
return_VALUE(result);
return result;
*state = ACPI_STATE_UNKNOWN;
......@@ -158,12 +155,12 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
status = acpi_evaluate_integer(device->handle, "_PSC",
NULL, &psc);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
device->power.state = (int)psc;
} else if (device->power.flags.power_resources) {
result = acpi_power_get_inferred_state(device);
if (result)
return_VALUE(result);
return result;
}
*state = device->power.state;
......@@ -172,7 +169,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is D%d\n",
device->pnp.bus_id, device->power.state));
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_bus_get_power);
......@@ -184,21 +181,20 @@ int acpi_bus_set_power(acpi_handle handle, int state)
struct acpi_device *device = NULL;
char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
ACPI_FUNCTION_TRACE("acpi_bus_set_power");
result = acpi_bus_get_device(handle, &device);
if (result)
return_VALUE(result);
return result;
if ((state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
return_VALUE(-EINVAL);
return -EINVAL;
/* Make sure this is a valid target state */
if (!device->flags.power_manageable) {
printk(KERN_DEBUG "Device `[%s]is not power manageable",
device->kobj.name);
return_VALUE(-ENODEV);
return -ENODEV;
}
/*
* Get device's current power state if it's unknown
......@@ -210,18 +206,18 @@ int acpi_bus_set_power(acpi_handle handle, int state)
if (state == device->power.state) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
state));
return_VALUE(0);
return 0;
}
}
if (!device->power.states[state].flags.valid) {
printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
return_VALUE(-ENODEV);
return -ENODEV;
}
if (device->parent && (state < device->parent->power.state)) {
printk(KERN_WARNING PREFIX
"Cannot set device to a higher-powered"
" state than parent\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
/*
......@@ -271,7 +267,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
"Device [%s] transitioned to D%d\n",
device->pnp.bus_id, state));
return_VALUE(result);
return result;
}
EXPORT_SYMBOL(acpi_bus_set_power);
......@@ -292,18 +288,17 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
struct acpi_bus_event *event = NULL;
unsigned long flags = 0;
ACPI_FUNCTION_TRACE("acpi_bus_generate_event");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
/* drop event on the floor if no one's listening */
if (!event_is_open)
return_VALUE(0);
return 0;
event = kmalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC);
if (!event)
return_VALUE(-ENOMEM);
return -ENOMEM;
strcpy(event->device_class, device->pnp.device_class);
strcpy(event->bus_id, device->pnp.bus_id);
......@@ -316,7 +311,7 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
wake_up_interruptible(&acpi_bus_event_queue);
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_bus_generate_event);
......@@ -328,10 +323,9 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
DECLARE_WAITQUEUE(wait, current);
ACPI_FUNCTION_TRACE("acpi_bus_receive_event");
if (!event)
return_VALUE(-EINVAL);
return -EINVAL;
if (list_empty(&acpi_bus_event_list)) {
......@@ -345,7 +339,7 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return_VALUE(-ERESTARTSYS);
return -ERESTARTSYS;
}
spin_lock_irqsave(&acpi_bus_event_lock, flags);
......@@ -356,13 +350,13 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
memcpy(event, entry, sizeof(struct acpi_bus_event));
kfree(entry);
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_bus_receive_event);
......@@ -377,10 +371,9 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed)
acpi_status status = 0;
struct acpi_device_status old_status;
ACPI_FUNCTION_TRACE("acpi_bus_check_device");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
if (status_changed)
*status_changed = 0;
......@@ -397,15 +390,15 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed)
if (status_changed)
*status_changed = 1;
}
return_VALUE(0);
return 0;
}
status = acpi_bus_get_status(device);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))
return_VALUE(0);
return 0;
if (status_changed)
*status_changed = 1;
......@@ -421,7 +414,7 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed)
/* TBD: Handle device removal */
}
return_VALUE(0);
return 0;
}
static int acpi_bus_check_scope(struct acpi_device *device)
......@@ -429,25 +422,24 @@ static int acpi_bus_check_scope(struct acpi_device *device)
int result = 0;
int status_changed = 0;
ACPI_FUNCTION_TRACE("acpi_bus_check_scope");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
/* Status Change? */
result = acpi_bus_check_device(device, &status_changed);
if (result)
return_VALUE(result);
return result;
if (!status_changed)
return_VALUE(0);
return 0;
/*
* TBD: Enumerate child devices within this device's scope and
* run acpi_bus_check_device()'s on them.
*/
return_VALUE(0);
return 0;
}
/**
......@@ -460,10 +452,9 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
int result = 0;
struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_bus_notify");
if (acpi_bus_get_device(handle, &device))
return_VOID;
return;
switch (type) {
......@@ -538,7 +529,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
break;
}
return_VOID;
return;
}
/* --------------------------------------------------------------------------
......@@ -552,7 +543,6 @@ static int __init acpi_bus_init_irq(void)
struct acpi_object_list arg_list = { 1, &arg };
char *message = NULL;
ACPI_FUNCTION_TRACE("acpi_bus_init_irq");
/*
* Let the system know what interrupt model we are using by
......@@ -571,7 +561,7 @@ static int __init acpi_bus_init_irq(void)
break;
default:
printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
......@@ -581,10 +571,10 @@ static int __init acpi_bus_init_irq(void)
status = acpi_evaluate_object(NULL, "\\_PIC", &arg_list, NULL);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
void __init acpi_early_init(void)
......@@ -592,10 +582,9 @@ void __init acpi_early_init(void)
acpi_status status = AE_OK;
struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
ACPI_FUNCTION_TRACE("acpi_early_init");
if (acpi_disabled)
return_VOID;
return;
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
......@@ -655,11 +644,11 @@ void __init acpi_early_init(void)
goto error0;
}
return_VOID;
return;
error0:
disable_acpi();
return_VOID;
return;
}
static int __init acpi_bus_init(void)
......@@ -668,7 +657,6 @@ static int __init acpi_bus_init(void)
acpi_status status = AE_OK;
extern acpi_status acpi_os_initialize1(void);
ACPI_FUNCTION_TRACE("acpi_bus_init");
status = acpi_os_initialize1();
......@@ -730,12 +718,12 @@ static int __init acpi_bus_init(void)
*/
acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL);
return_VALUE(0);
return 0;
/* Mimic structured exception handling */
error1:
acpi_terminate();
return_VALUE(-ENODEV);
return -ENODEV;
}
decl_subsys(acpi, NULL, NULL);
......@@ -744,11 +732,10 @@ static int __init acpi_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_init");
if (acpi_disabled) {
printk(KERN_INFO PREFIX "Interpreter disabled.\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
firmware_register(&acpi_subsys);
......@@ -769,7 +756,7 @@ static int __init acpi_init(void)
} else
disable_acpi();
return_VALUE(result);
return result;
}
subsys_initcall(acpi_init);
drivers/acpi/button.c
浏览文件 @ d550d98d
......@@ -112,15 +112,14 @@ static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_button *button = (struct acpi_button *)seq->private;
ACPI_FUNCTION_TRACE("acpi_button_info_seq_show");
if (!button || !button->device)
return_VALUE(0);
return 0;
seq_printf(seq, "type: %s\n",
acpi_device_name(button->device));
return_VALUE(0);
return 0;
}
static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
......@@ -134,10 +133,9 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
acpi_status status;
unsigned long state;
ACPI_FUNCTION_TRACE("acpi_button_state_seq_show");
if (!button || !button->device)
return_VALUE(0);
return 0;
status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state);
if (ACPI_FAILURE(status)) {
......@@ -147,7 +145,7 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
(state ? "open" : "closed"));
}
return_VALUE(0);
return 0;
}
static int acpi_button_state_open_fs(struct inode *inode, struct file *file)
......@@ -164,10 +162,9 @@ static int acpi_button_add_fs(struct acpi_device *device)
struct proc_dir_entry *entry = NULL;
struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_add_fs");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
button = acpi_driver_data(device);
......@@ -195,19 +192,19 @@ static int acpi_button_add_fs(struct acpi_device *device)
}
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
entry->owner = THIS_MODULE;
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = create_proc_entry(ACPI_BUTTON_FILE_INFO,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_button_info_fops;
entry->data = acpi_driver_data(device);
......@@ -227,14 +224,13 @@ static int acpi_button_add_fs(struct acpi_device *device)
}
}
return_VALUE(0);
return 0;
}
static int acpi_button_remove_fs(struct acpi_device *device)
{
struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_remove_fs");
button = acpi_driver_data(device);
if (acpi_device_dir(device)) {
......@@ -249,7 +245,7 @@ static int acpi_button_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -260,10 +256,9 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
{
struct acpi_button *button = (struct acpi_button *)data;
ACPI_FUNCTION_TRACE("acpi_button_notify");
if (!button || !button->device)
return_VOID;
return;
switch (event) {
case ACPI_BUTTON_NOTIFY_STATUS:
......@@ -276,21 +271,20 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static acpi_status acpi_button_notify_fixed(void *data)
{
struct acpi_button *button = (struct acpi_button *)data;
ACPI_FUNCTION_TRACE("acpi_button_notify_fixed");
if (!button)
return_ACPI_STATUS(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
static int acpi_button_add(struct acpi_device *device)
......@@ -299,14 +293,13 @@ static int acpi_button_add(struct acpi_device *device)
acpi_status status = AE_OK;
struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL);
if (!button)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(button, 0, sizeof(struct acpi_button));
button->device = device;
......@@ -400,7 +393,7 @@ static int acpi_button_add(struct acpi_device *device)
kfree(button);
}
return_VALUE(result);
return result;
}
static int acpi_button_remove(struct acpi_device *device, int type)
......@@ -408,10 +401,9 @@ static int acpi_button_remove(struct acpi_device *device, int type)
acpi_status status = 0;
struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
button = acpi_driver_data(device);
......@@ -438,31 +430,29 @@ static int acpi_button_remove(struct acpi_device *device, int type)
kfree(button);
return_VALUE(0);
return 0;
}
static int __init acpi_button_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_button_init");
acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
if (!acpi_button_dir)
return_VALUE(-ENODEV);
return -ENODEV;
acpi_button_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_button_driver);
if (result < 0) {
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static void __exit acpi_button_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_button_exit");
acpi_bus_unregister_driver(&acpi_button_driver);
......@@ -474,7 +464,7 @@ static void __exit acpi_button_exit(void)
remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
return_VOID;
return;
}
module_init(acpi_button_init);
......
drivers/acpi/container.c
浏览文件 @ d550d98d
......@@ -73,17 +73,16 @@ static int is_device_present(acpi_handle handle)
acpi_status status;
unsigned long sta;
ACPI_FUNCTION_TRACE("is_device_present");
status = acpi_get_handle(handle, "_STA", &temp);
if (ACPI_FAILURE(status))
return_VALUE(1); /* _STA not found, assmue device present */
return 1; /* _STA not found, assmue device present */
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
return_VALUE(0); /* Firmware error */
return 0; /* Firmware error */
return_VALUE((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
return ((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
}
/*******************************************************************/
......@@ -91,16 +90,15 @@ static int acpi_container_add(struct acpi_device *device)
{
struct acpi_container *container;
ACPI_FUNCTION_TRACE("acpi_container_add");
if (!device) {
printk(KERN_ERR PREFIX "device is NULL\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
container = kmalloc(sizeof(struct acpi_container), GFP_KERNEL);
if (!container)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(container, 0, sizeof(struct acpi_container));
container->handle = device->handle;
......@@ -111,7 +109,7 @@ static int acpi_container_add(struct acpi_device *device)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device <%s> bid <%s>\n",
acpi_device_name(device), acpi_device_bid(device)));
return_VALUE(0);
return 0;
}
static int acpi_container_remove(struct acpi_device *device, int type)
......@@ -130,23 +128,22 @@ static int container_device_add(struct acpi_device **device, acpi_handle handle)
struct acpi_device *pdev;
int result;
ACPI_FUNCTION_TRACE("container_device_add");
if (acpi_get_parent(handle, &phandle)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
if (acpi_bus_get_device(phandle, &pdev)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_DEVICE)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
result = acpi_bus_start(*device);
return_VALUE(result);
return result;
}
static void container_notify_cb(acpi_handle handle, u32 type, void *context)
......@@ -156,7 +153,6 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
int present;
acpi_status status;
ACPI_FUNCTION_TRACE("container_notify_cb");
present = is_device_present(handle);
......@@ -192,7 +188,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
default:
break;
}
return_VOID;
return;
}
static acpi_status
......@@ -205,11 +201,10 @@ container_walk_namespace_cb(acpi_handle handle,
acpi_status status;
int *action = context;
ACPI_FUNCTION_TRACE("container_walk_namespace_cb");
status = acpi_get_object_info(handle, &buffer);
if (ACPI_FAILURE(status) || !buffer.pointer) {
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
info = buffer.pointer;
......@@ -243,7 +238,7 @@ container_walk_namespace_cb(acpi_handle handle,
end:
acpi_os_free(buffer.pointer);
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
static int __init acpi_container_init(void)
......@@ -269,7 +264,6 @@ static void __exit acpi_container_exit(void)
{
int action = UNINSTALL_NOTIFY_HANDLER;
ACPI_FUNCTION_TRACE("acpi_container_exit");
acpi_walk_namespace(ACPI_TYPE_DEVICE,
ACPI_ROOT_OBJECT,
......@@ -278,7 +272,7 @@ static void __exit acpi_container_exit(void)
acpi_bus_unregister_driver(&acpi_container_driver);
return_VOID;
return;
}
module_init(acpi_container_init);
......
drivers/acpi/debug.c
浏览文件 @ d550d98d
......@@ -155,13 +155,12 @@ acpi_system_write_debug(struct file *file,
{
char debug_string[12] = { '\0' };
ACPI_FUNCTION_TRACE("acpi_system_write_debug");
if (count > sizeof(debug_string) - 1)
return_VALUE(-EINVAL);
return -EINVAL;
if (copy_from_user(debug_string, buffer, count))
return_VALUE(-EFAULT);
return -EFAULT;
debug_string[count] = '\0';
......@@ -173,10 +172,10 @@ acpi_system_write_debug(struct file *file,
acpi_dbg_level = simple_strtoul(debug_string, NULL, 0);
break;
default:
return_VALUE(-EINVAL);
return -EINVAL;
}
return_VALUE(count);
return count;
}
static int __init acpi_debug_init(void)
......@@ -185,10 +184,9 @@ static int __init acpi_debug_init(void)
int error = 0;
char *name;
ACPI_FUNCTION_TRACE("acpi_debug_init");
if (acpi_disabled)
return_VALUE(0);
return 0;
/* 'debug_layer' [R/W] */
name = ACPI_SYSTEM_FILE_DEBUG_LAYER;
......@@ -213,7 +211,7 @@ static int __init acpi_debug_init(void)
goto Error;
Done:
return_VALUE(error);
return error;
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LEVEL, acpi_root_dir);
......
drivers/acpi/ec.c
浏览文件 @ d550d98d
......@@ -207,7 +207,6 @@ static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_wait");
ec->intr.expect_event = event;
smp_mb();
......@@ -216,7 +215,7 @@ static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)
case ACPI_EC_EVENT_IBE:
if (~acpi_ec_read_status(ec) & event) {
ec->intr.expect_event = 0;
return_VALUE(0);
return 0;
}
break;
default:
......@@ -238,16 +237,16 @@ static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)
switch (event) {
case ACPI_EC_EVENT_OBF:
if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_OBF)
return_VALUE(0);
return 0;
break;
case ACPI_EC_EVENT_IBE:
if (~acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
return_VALUE(0);
return 0;
break;
}
return_VALUE(-ETIME);
return -ETIME;
}
#ifdef ACPI_FUTURE_USAGE
......@@ -260,7 +259,6 @@ int acpi_ec_enter_burst_mode(union acpi_ec *ec)
u32 tmp = 0;
int status = 0;
ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
status = acpi_ec_read_status(ec);
if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
......@@ -272,22 +270,21 @@ int acpi_ec_enter_burst_mode(union acpi_ec *ec)
status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
if (tmp != 0x90) { /* Burst ACK byte */
return_VALUE(-EINVAL);
return -EINVAL;
}
}
atomic_set(&ec->intr.leaving_burst, 0);
return_VALUE(0);
return 0;
end:
ACPI_EXCEPTION ((AE_INFO, status, "EC wait, burst mode");
return_VALUE(-1);
return -1;
}
int acpi_ec_leave_burst_mode(union acpi_ec *ec)
{
int status = 0;
ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
status = acpi_ec_read_status(ec);
if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)){
......@@ -298,10 +295,10 @@ int acpi_ec_leave_burst_mode(union acpi_ec *ec)
acpi_ec_wait(ec, ACPI_EC_FLAG_IBF);
}
atomic_set(&ec->intr.leaving_burst, 1);
return_VALUE(0);
return 0;
end:
ACPI_EXCEPTION((AE_INFO, status, "EC leave burst mode");
return_VALUE(-1);
return -1;
}
#endif /* ACPI_FUTURE_USAGE */
......@@ -325,17 +322,16 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
int result = 0;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_read");
if (!ec || !data)
return_VALUE(-EINVAL);
return -EINVAL;
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
if (down_interruptible(&ec->poll.sem)) {
......@@ -365,7 +361,7 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
return result;
}
static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
......@@ -374,15 +370,14 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
acpi_status status = AE_OK;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_write");
if (!ec)
return_VALUE(-EINVAL);
return -EINVAL;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
if (down_interruptible(&ec->poll.sem)) {
......@@ -415,7 +410,7 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
return result;
}
static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
......@@ -423,17 +418,16 @@ static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
int status = 0;
u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_read");
if (!ec || !data)
return_VALUE(-EINVAL);
return -EINVAL;
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
WARN_ON(in_interrupt());
......@@ -467,7 +461,7 @@ static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(status);
return status;
}
static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
......@@ -475,15 +469,14 @@ static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
int status = 0;
u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_write");
if (!ec)
return_VALUE(-EINVAL);
return -EINVAL;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
WARN_ON(in_interrupt());
......@@ -516,7 +509,7 @@ static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(status);
return status;
}
/*
......@@ -574,17 +567,16 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
acpi_status status = AE_OK;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_query");
if (!ec || !data)
return_VALUE(-EINVAL);
return -EINVAL;
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
/*
......@@ -613,23 +605,22 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
return result;
}
static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)
{
int status = 0;
u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_query");
if (!ec || !data)
return_VALUE(-EINVAL);
return -EINVAL;
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
}
down(&ec->intr.sem);
......@@ -662,7 +653,7 @@ static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(status);
return status;
}
/* --------------------------------------------------------------------------
......@@ -691,13 +682,12 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt)
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
if (!ec_cxt)
goto end;
if (down_interruptible (&ec->poll.sem)) {
return_VOID;
return;
}
acpi_hw_low_level_read(8, &value, &ec->common.command_addr);
up(&ec->poll.sem);
......@@ -734,7 +724,6 @@ static void acpi_ec_gpe_intr_query(void *ec_cxt)
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_SCI)
result = acpi_ec_query(ec, &value);
......@@ -846,15 +835,14 @@ acpi_ec_space_handler(u32 function,
acpi_integer f_v = 0;
int i = 0;
ACPI_FUNCTION_TRACE("acpi_ec_space_handler");
if ((address > 0xFF) || !value || !handler_context)
return_VALUE(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
if (bit_width != 8 && acpi_strict) {
printk(KERN_WARNING PREFIX
"acpi_ec_space_handler: bit_width should be 8\n");
return_VALUE(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
}
ec = (union acpi_ec *)handler_context;
......@@ -893,16 +881,16 @@ acpi_ec_space_handler(u32 function,
out:
switch (result) {
case -EINVAL:
return_VALUE(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
break;
case -ENODEV:
return_VALUE(AE_NOT_FOUND);
return AE_NOT_FOUND;
break;
case -ETIME:
return_VALUE(AE_TIME);
return AE_TIME;
break;
default:
return_VALUE(AE_OK);
return AE_OK;
}
}
......@@ -916,7 +904,6 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset)
{
union acpi_ec *ec = (union acpi_ec *)seq->private;
ACPI_FUNCTION_TRACE("acpi_ec_read_info");
if (!ec)
goto end;
......@@ -931,7 +918,7 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset)
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
end:
return_VALUE(0);
return 0;
}
static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
......@@ -951,31 +938,29 @@ static int acpi_ec_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_ec_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
}
entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO,
acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_ec_info_ops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
return_VALUE(0);
return 0;
}
static int acpi_ec_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_EC_FILE_INFO, acpi_device_dir(device));
......@@ -983,7 +968,7 @@ static int acpi_ec_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -996,14 +981,13 @@ static int acpi_ec_poll_add(struct acpi_device *device)
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(ec, 0, sizeof(union acpi_ec));
ec->common.handle = device->handle;
......@@ -1056,7 +1040,7 @@ static int acpi_ec_poll_add(struct acpi_device *device)
if (result)
kfree(ec);
return_VALUE(result);
return result;
}
static int acpi_ec_intr_add(struct acpi_device *device)
{
......@@ -1064,14 +1048,13 @@ static int acpi_ec_intr_add(struct acpi_device *device)
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(ec, 0, sizeof(union acpi_ec));
ec->common.handle = device->handle;
......@@ -1127,17 +1110,16 @@ static int acpi_ec_intr_add(struct acpi_device *device)
if (result)
kfree(ec);
return_VALUE(result);
return result;
}
static int acpi_ec_remove(struct acpi_device *device, int type)
{
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_remove");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ec = acpi_driver_data(device);
......@@ -1145,7 +1127,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
kfree(ec);
return_VALUE(0);
return 0;
}
static acpi_status
......@@ -1184,15 +1166,14 @@ static int acpi_ec_start(struct acpi_device *device)
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_start");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ec = acpi_driver_data(device);
if (!ec)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* Get I/O port addresses. Convert to GAS format.
......@@ -1202,7 +1183,7 @@ static int acpi_ec_start(struct acpi_device *device)
if (ACPI_FAILURE(status)
|| ec->common.command_addr.register_bit_width == 0) {
printk(KERN_ERR PREFIX "Error getting I/O port addresses\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
ec->common.status_addr = ec->common.command_addr;
......@@ -1219,7 +1200,7 @@ static int acpi_ec_start(struct acpi_device *device)
ACPI_GPE_EDGE_TRIGGERED,
&acpi_ec_gpe_handler, ec);
if (ACPI_FAILURE(status)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
acpi_set_gpe_type(NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
......@@ -1231,10 +1212,10 @@ static int acpi_ec_start(struct acpi_device *device)
if (ACPI_FAILURE(status)) {
acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
&acpi_ec_gpe_handler);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(AE_OK);
return AE_OK;
}
static int acpi_ec_stop(struct acpi_device *device, int type)
......@@ -1242,10 +1223,9 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_stop");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
ec = acpi_driver_data(device);
......@@ -1253,15 +1233,15 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
ACPI_ADR_SPACE_EC,
&acpi_ec_space_handler);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
status =
acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
&acpi_ec_gpe_handler);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
return_VALUE(0);
return 0;
}
static acpi_status __init
......@@ -1531,23 +1511,22 @@ static int __init acpi_ec_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_init");
if (acpi_disabled)
return_VALUE(0);
return 0;
acpi_ec_dir = proc_mkdir(ACPI_EC_CLASS, acpi_root_dir);
if (!acpi_ec_dir)
return_VALUE(-ENODEV);
return -ENODEV;
/* Now register the driver for the EC */
result = acpi_bus_register_driver(&acpi_ec_driver);
if (result < 0) {
remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(result);
return result;
}
subsys_initcall(acpi_ec_init);
......@@ -1556,13 +1535,12 @@ subsys_initcall(acpi_ec_init);
#if 0
static void __exit acpi_ec_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_ec_exit");
acpi_bus_unregister_driver(&acpi_ec_driver);
remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
return_VOID;
return;
}
#endif /* 0 */
......
drivers/acpi/event.c
浏览文件 @ d550d98d
......@@ -48,18 +48,17 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
static int chars_remaining = 0;
static char *ptr;
ACPI_FUNCTION_TRACE("acpi_system_read_event");
if (!chars_remaining) {
memset(&event, 0, sizeof(struct acpi_bus_event));
if ((file->f_flags & O_NONBLOCK)
&& (list_empty(&acpi_bus_event_list)))
return_VALUE(-EAGAIN);
return -EAGAIN;
result = acpi_bus_receive_event(&event);
if (result)
return_VALUE(result);
return result;
chars_remaining = sprintf(str, "%s %s %08x %08x\n",
event.device_class ? event.
......@@ -75,13 +74,13 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
}
if (copy_to_user(buffer, ptr, count))
return_VALUE(-EFAULT);
return -EFAULT;
*ppos += count;
chars_remaining -= count;
ptr += count;
return_VALUE(count);
return count;
}
static int acpi_system_close_event(struct inode *inode, struct file *file)
......@@ -112,10 +111,9 @@ static int __init acpi_event_init(void)
struct proc_dir_entry *entry;
int error = 0;
ACPI_FUNCTION_TRACE("acpi_event_init");
if (acpi_disabled)
return_VALUE(0);
return 0;
/* 'event' [R] */
entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
......@@ -124,7 +122,7 @@ static int __init acpi_event_init(void)
else {
error = -ENODEV;
}
return_VALUE(error);
return error;
}
subsys_initcall(acpi_event_init);
drivers/acpi/fan.c
浏览文件 @ d550d98d
......@@ -78,7 +78,6 @@ static int acpi_fan_read_state(struct seq_file *seq, void *offset)
struct acpi_fan *fan = seq->private;
int state = 0;
ACPI_FUNCTION_TRACE("acpi_fan_read_state");
if (fan) {
if (acpi_bus_get_power(fan->handle, &state))
......@@ -87,7 +86,7 @@ static int acpi_fan_read_state(struct seq_file *seq, void *offset)
seq_printf(seq, "status: %s\n",
!state ? "on" : "off");
}
return_VALUE(0);
return 0;
}
static int acpi_fan_state_open_fs(struct inode *inode, struct file *file)
......@@ -104,22 +103,21 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
struct acpi_fan *fan = (struct acpi_fan *)m->private;
char state_string[12] = { '\0' };
ACPI_FUNCTION_TRACE("acpi_fan_write_state");
if (!fan || (count > sizeof(state_string) - 1))
return_VALUE(-EINVAL);
return -EINVAL;
if (copy_from_user(state_string, buffer, count))
return_VALUE(-EFAULT);
return -EFAULT;
state_string[count] = '\0';
result = acpi_bus_set_power(fan->handle,
simple_strtoul(state_string, NULL, 0));
if (result)
return_VALUE(result);
return result;
return_VALUE(count);
return count;
}
static struct file_operations acpi_fan_state_ops = {
......@@ -135,16 +133,15 @@ static int acpi_fan_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_fan_add_fs");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_fan_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
}
......@@ -153,19 +150,18 @@ static int acpi_fan_add_fs(struct acpi_device *device)
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device));
if (!entry)
return_VALUE(-ENODEV);
return -ENODEV;
else {
entry->proc_fops = &acpi_fan_state_ops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
return_VALUE(0);
return 0;
}
static int acpi_fan_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_fan_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_FAN_FILE_STATE, acpi_device_dir(device));
......@@ -173,7 +169,7 @@ static int acpi_fan_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -186,14 +182,13 @@ static int acpi_fan_add(struct acpi_device *device)
struct acpi_fan *fan = NULL;
int state = 0;
ACPI_FUNCTION_TRACE("acpi_fan_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
fan = kmalloc(sizeof(struct acpi_fan), GFP_KERNEL);
if (!fan)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(fan, 0, sizeof(struct acpi_fan));
fan->handle = device->handle;
......@@ -223,17 +218,16 @@ static int acpi_fan_add(struct acpi_device *device)
if (result)
kfree(fan);
return_VALUE(result);
return result;
}
static int acpi_fan_remove(struct acpi_device *device, int type)
{
struct acpi_fan *fan = NULL;
ACPI_FUNCTION_TRACE("acpi_fan_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
fan = (struct acpi_fan *)acpi_driver_data(device);
......@@ -241,7 +235,7 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
kfree(fan);
return_VALUE(0);
return 0;
}
static int acpi_fan_suspend(struct acpi_device *device, int state)
......@@ -280,31 +274,29 @@ static int __init acpi_fan_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_fan_init");
acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
if (!acpi_fan_dir)
return_VALUE(-ENODEV);
return -ENODEV;
acpi_fan_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_fan_driver);
if (result < 0) {
remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
static void __exit acpi_fan_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_fan_exit");
acpi_bus_unregister_driver(&acpi_fan_driver);
remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir);
return_VOID;
return;
}
module_init(acpi_fan_init);
......
drivers/acpi/hotkey.c
浏览文件 @ d550d98d
......@@ -231,11 +231,10 @@ struct list_head hotkey_entries; /* head of the list of hotkey_list */
static int hotkey_info_seq_show(struct seq_file *seq, void *offset)
{
ACPI_FUNCTION_TRACE("hotkey_info_seq_show");
seq_printf(seq, "Hotkey generic driver ver: %s\n", HOTKEY_ACPI_VERSION);
return_VALUE(0);
return 0;
}
static int hotkey_info_open_fs(struct inode *inode, struct file *file)
......@@ -266,7 +265,6 @@ static int hotkey_polling_seq_show(struct seq_file *seq, void *offset)
(struct acpi_polling_hotkey *)seq->private;
char *buf;
ACPI_FUNCTION_TRACE("hotkey_polling_seq_show");
if (poll_hotkey->poll_result) {
buf = format_result(poll_hotkey->poll_result);
......@@ -274,7 +272,7 @@ static int hotkey_polling_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "%s", buf);
kfree(buf);
}
return_VALUE(0);
return 0;
}
static int hotkey_polling_open_fs(struct inode *inode, struct file *file)
......@@ -293,7 +291,6 @@ static int hotkey_get_internal_event(int event, struct acpi_hotkey_list *list)
struct list_head *entries;
int val = -1;
ACPI_FUNCTION_TRACE("hotkey_get_internal_event");
list_for_each(entries, list->entries) {
union acpi_hotkey *key =
......@@ -305,7 +302,7 @@ static int hotkey_get_internal_event(int event, struct acpi_hotkey_list *list)
}
}
return_VALUE(val);
return val;
}
static void
......@@ -314,15 +311,14 @@ acpi_hotkey_notify_handler(acpi_handle handle, u32 event, void *data)
struct acpi_device *device = NULL;
u32 internal_event;
ACPI_FUNCTION_TRACE("acpi_hotkey_notify_handler");
if (acpi_bus_get_device(handle, &device))
return_VOID;
return;
internal_event = hotkey_get_internal_event(event, &global_hotkey_list);
acpi_bus_generate_event(device, internal_event, 0);
return_VOID;
return;
}
/* Need to invent automatically hotkey add method */
......@@ -346,7 +342,6 @@ static int create_polling_proc(union acpi_hotkey *device)
char proc_name[80];
mode_t mode;
ACPI_FUNCTION_TRACE("create_polling_proc");
mode = S_IFREG | S_IRUGO | S_IWUGO;
sprintf(proc_name, "%d", device->link.hotkey_standard_num);
......@@ -356,7 +351,7 @@ static int create_polling_proc(union acpi_hotkey *device)
proc = create_proc_entry(proc_name, mode, hotkey_proc_dir);
if (!proc) {
return_VALUE(-ENODEV);
return -ENODEV;
} else {
proc->proc_fops = &hotkey_polling_fops;
proc->owner = THIS_MODULE;
......@@ -365,7 +360,7 @@ static int create_polling_proc(union acpi_hotkey *device)
proc->gid = 0;
device->poll_hotkey.proc = proc;
}
return_VALUE(0);
return 0;
}
static int hotkey_add(union acpi_hotkey *device)
......@@ -373,7 +368,6 @@ static int hotkey_add(union acpi_hotkey *device)
int status = 0;
struct acpi_device *dev = NULL;
ACPI_FUNCTION_TRACE("hotkey_add");
if (device->link.hotkey_type == ACPI_HOTKEY_EVENT) {
acpi_bus_get_device(device->event_hotkey.bus_handle, &dev);
......@@ -388,14 +382,13 @@ static int hotkey_add(union acpi_hotkey *device)
list_add_tail(&device->link.entries, global_hotkey_list.entries);
return_VALUE(status);
return status;
}
static int hotkey_remove(union acpi_hotkey *device)
{
struct list_head *entries, *next;
ACPI_FUNCTION_TRACE("hotkey_remove");
list_for_each_safe(entries, next, global_hotkey_list.entries) {
union acpi_hotkey *key =
......@@ -409,14 +402,13 @@ static int hotkey_remove(union acpi_hotkey *device)
}
}
kfree(device);
return_VALUE(0);
return 0;
}
static int hotkey_update(union acpi_hotkey *key)
{
struct list_head *entries;
ACPI_FUNCTION_TRACE("hotkey_update");
list_for_each(entries, global_hotkey_list.entries) {
union acpi_hotkey *tmp =
......@@ -458,19 +450,18 @@ static int hotkey_update(union acpi_hotkey *key)
*/
kfree(key);
}
return_VALUE(0);
return 0;
break;
}
}
return_VALUE(-ENODEV);
return -ENODEV;
}
static void free_hotkey_device(union acpi_hotkey *key)
{
struct acpi_device *dev;
ACPI_FUNCTION_TRACE("free_hotkey_device");
if (key->link.hotkey_type == ACPI_HOTKEY_EVENT) {
acpi_bus_get_device(key->event_hotkey.bus_handle, &dev);
......@@ -490,7 +481,7 @@ static void free_hotkey_device(union acpi_hotkey *key)
free_poll_hotkey_buffer(key);
}
kfree(key);
return_VOID;
return;
}
static void free_hotkey_buffer(union acpi_hotkey *key)
......@@ -511,7 +502,6 @@ init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str,
acpi_handle tmp_handle;
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("init_hotkey_device");
if (std_num < 0 || IS_POLL(std_num) || !key)
goto do_fail;
......@@ -538,9 +528,9 @@ init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str,
method, &tmp_handle);
if (ACPI_FAILURE(status))
goto do_fail;
return_VALUE(AE_OK);
return AE_OK;
do_fail:
return_VALUE(-ENODEV);
return -ENODEV;
}
static int
......@@ -552,7 +542,6 @@ init_poll_hotkey_device(union acpi_hotkey *key,
acpi_status status = AE_OK;
acpi_handle tmp_handle;
ACPI_FUNCTION_TRACE("init_poll_hotkey_device");
if (std_num < 0 || IS_EVENT(std_num) || !key)
goto do_fail;
......@@ -587,22 +576,20 @@ init_poll_hotkey_device(union acpi_hotkey *key,
(union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL);
if (!key->poll_hotkey.poll_result)
goto do_fail;
return_VALUE(AE_OK);
return AE_OK;
do_fail:
return_VALUE(-ENODEV);
return -ENODEV;
}
static int hotkey_open_config(struct inode *inode, struct file *file)
{
ACPI_FUNCTION_TRACE("hotkey_open_config");
return_VALUE(single_open
return (single_open
(file, hotkey_config_seq_show, PDE(inode)->data));
}
static int hotkey_poll_open_config(struct inode *inode, struct file *file)
{
ACPI_FUNCTION_TRACE("hotkey_poll_open_config");
return_VALUE(single_open
return (single_open
(file, hotkey_poll_config_seq_show, PDE(inode)->data));
}
......@@ -615,7 +602,6 @@ static int hotkey_config_seq_show(struct seq_file *seq, void *offset)
struct acpi_buffer bus = { ACPI_PATHNAME_MAX, bus_name };
struct acpi_buffer act = { ACPI_PATHNAME_MAX, action_name };
ACPI_FUNCTION_TRACE(("hotkey_config_seq_show"));
list_for_each(entries, hotkey_list->entries) {
union acpi_hotkey *key =
......@@ -633,7 +619,7 @@ static int hotkey_config_seq_show(struct seq_file *seq, void *offset)
}
}
seq_puts(seq, "\n");
return_VALUE(0);
return 0;
}
static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset)
......@@ -645,7 +631,6 @@ static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset)
struct acpi_buffer bus = { ACPI_PATHNAME_MAX, bus_name };
struct acpi_buffer act = { ACPI_PATHNAME_MAX, action_name };
ACPI_FUNCTION_TRACE(("hotkey_config_seq_show"));
list_for_each(entries, hotkey_list->entries) {
union acpi_hotkey *key =
......@@ -663,7 +648,7 @@ static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset)
}
}
seq_puts(seq, "\n");
return_VALUE(0);
return 0;
}
static int
......@@ -675,7 +660,6 @@ get_parms(char *config_record,
char **method, int *internal_event_num, int *external_event_num)
{
char *tmp, *tmp1, count;
ACPI_FUNCTION_TRACE(("get_parms"));
sscanf(config_record, "%d", cmd);
......@@ -741,9 +725,9 @@ get_parms(char *config_record,
0)
goto do_fail;
return_VALUE(6);
return 6;
do_fail:
return_VALUE(-1);
return -1;
}
/* count is length for one input record */
......@@ -760,16 +744,15 @@ static ssize_t hotkey_write_config(struct file *file,
int ret = 0;
union acpi_hotkey *key = NULL;
ACPI_FUNCTION_TRACE(("hotkey_write_config"));
config_record = (char *)kmalloc(count + 1, GFP_KERNEL);
if (!config_record)
return_VALUE(-ENOMEM);
return -ENOMEM;
if (copy_from_user(config_record, buffer, count)) {
kfree(config_record);
printk(KERN_ERR PREFIX "Invalid data\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
config_record[count] = 0;
......@@ -790,7 +773,7 @@ static ssize_t hotkey_write_config(struct file *file,
kfree(action_handle);
kfree(method);
printk(KERN_ERR PREFIX "Invalid data format ret=%d\n", ret);
return_VALUE(-EINVAL);
return -EINVAL;
}
key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL);
......@@ -825,7 +808,7 @@ static ssize_t hotkey_write_config(struct file *file,
free_poll_hotkey_buffer(key);
kfree(key);
printk(KERN_ERR PREFIX "Invalid hotkey\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
cont_cmd:
......@@ -851,7 +834,7 @@ static ssize_t hotkey_write_config(struct file *file,
goto fail_out;
break;
}
return_VALUE(count);
return count;
fail_out:
if (IS_EVENT(internal_event_num))
free_hotkey_buffer(key);
......@@ -859,7 +842,7 @@ static ssize_t hotkey_write_config(struct file *file,
free_poll_hotkey_buffer(key);
kfree(key);
printk(KERN_ERR PREFIX "invalid key\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
/*
......@@ -876,7 +859,6 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
union acpi_object in_obj; /* the only param we use */
acpi_status status;
ACPI_FUNCTION_TRACE("write_acpi_int");
params.count = 1;
params.pointer = &in_obj;
in_obj.type = ACPI_TYPE_INTEGER;
......@@ -884,7 +866,7 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
status = acpi_evaluate_object(handle, (char *)method, &params, output);
return_VALUE(status == AE_OK);
return (status == AE_OK);
}
static int read_acpi_int(acpi_handle handle, const char *method,
......@@ -894,7 +876,6 @@ static int read_acpi_int(acpi_handle handle, const char *method,
union acpi_object out_obj;
acpi_status status;
ACPI_FUNCTION_TRACE("read_acpi_int");
output.length = sizeof(out_obj);
output.pointer = &out_obj;
......@@ -904,7 +885,7 @@ static int read_acpi_int(acpi_handle handle, const char *method,
val->type = out_obj.type;
} else
printk(KERN_ERR PREFIX "null val pointer\n");
return_VALUE((status == AE_OK)
return ((status == AE_OK)
&& (out_obj.type == ACPI_TYPE_INTEGER));
}
......@@ -941,24 +922,23 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
int event, method_type, type, value;
union acpi_hotkey *key;
ACPI_FUNCTION_TRACE("hotkey_execte_aml_method");
arg = (char *)kmalloc(count + 1, GFP_KERNEL);
if (!arg)
return_VALUE(-ENOMEM);
return -ENOMEM;
arg[count] = 0;
if (copy_from_user(arg, buffer, count)) {
kfree(arg);
printk(KERN_ERR PREFIX "Invalid argument 2\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
if (sscanf(arg, "%d:%d:%d:%d", &event, &method_type, &type, &value) !=
4) {
kfree(arg);
printk(KERN_ERR PREFIX "Invalid argument 3\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
kfree(arg);
if (type == ACPI_TYPE_INTEGER) {
......@@ -984,11 +964,11 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
}
} else {
printk(KERN_WARNING "Not supported\n");
return_VALUE(-EINVAL);
return -EINVAL;
}
return_VALUE(count);
return count;
do_fail:
return_VALUE(-EINVAL);
return -EINVAL;
}
......@@ -997,7 +977,6 @@ static int __init hotkey_init(void)
int result;
mode_t mode = S_IFREG | S_IRUGO | S_IWUGO;
ACPI_FUNCTION_TRACE("hotkey_init");
if (acpi_disabled)
return -ENODEV;
......@@ -1084,7 +1063,6 @@ static void __exit hotkey_exit(void)
{
struct list_head *entries, *next;
ACPI_FUNCTION_TRACE("hotkey_exit");
list_for_each_safe(entries, next, global_hotkey_list.entries) {
union acpi_hotkey *key =
......
drivers/acpi/motherboard.c
浏览文件 @ d550d98d
......@@ -52,13 +52,12 @@ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
{
struct resource *requested_res = NULL;
ACPI_FUNCTION_TRACE("acpi_reserve_io_ranges");
if (res->type == ACPI_RESOURCE_TYPE_IO) {
struct acpi_resource_io *io_res = &res->data.io;
if (io_res->minimum != io_res->maximum)
return_VALUE(AE_OK);
return AE_OK;
if (IS_RESERVED_ADDR
(io_res->minimum, io_res->address_length)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
......@@ -92,7 +91,7 @@ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
if (requested_res)
requested_res->flags &= ~IORESOURCE_BUSY;
return_VALUE(AE_OK);
return AE_OK;
}
static int acpi_motherboard_add(struct acpi_device *device)
......
drivers/acpi/osl.c
浏览文件 @ d550d98d
......@@ -587,19 +587,18 @@ static void acpi_os_execute_deferred(void *context)
{
struct acpi_os_dpc *dpc = NULL;
ACPI_FUNCTION_TRACE("os_execute_deferred");
dpc = (struct acpi_os_dpc *)context;
if (!dpc) {
printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
return_VOID;
return;
}
dpc->function(dpc->context);
kfree(dpc);
return_VOID;
return;
}
static int acpi_os_execute_thread(void *context)
......@@ -693,7 +692,6 @@ acpi_status acpi_os_create_lock(acpi_handle * out_handle)
{
spinlock_t *lock_ptr;
ACPI_FUNCTION_TRACE("os_create_lock");
lock_ptr = acpi_os_allocate(sizeof(spinlock_t));
......@@ -703,7 +701,7 @@ acpi_status acpi_os_create_lock(acpi_handle * out_handle)
*out_handle = lock_ptr;
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
/*
......@@ -711,13 +709,12 @@ acpi_status acpi_os_create_lock(acpi_handle * out_handle)
*/
void acpi_os_delete_lock(acpi_handle handle)
{
ACPI_FUNCTION_TRACE("os_create_lock");
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting spinlock[%p].\n", handle));
acpi_os_free(handle);
return_VOID;
return;
}
acpi_status
......@@ -725,11 +722,10 @@ acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
{
struct semaphore *sem = NULL;
ACPI_FUNCTION_TRACE("os_create_semaphore");
sem = acpi_os_allocate(sizeof(struct semaphore));
if (!sem)
return_ACPI_STATUS(AE_NO_MEMORY);
return AE_NO_MEMORY;
memset(sem, 0, sizeof(struct semaphore));
sema_init(sem, initial_units);
......@@ -739,7 +735,7 @@ acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Creating semaphore[%p|%d].\n",
*handle, initial_units));
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
EXPORT_SYMBOL(acpi_os_create_semaphore);
......@@ -755,17 +751,16 @@ acpi_status acpi_os_delete_semaphore(acpi_handle handle)
{
struct semaphore *sem = (struct semaphore *)handle;
ACPI_FUNCTION_TRACE("os_delete_semaphore");
if (!sem)
return_ACPI_STATUS(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting semaphore[%p].\n", handle));
acpi_os_free(sem);
sem = NULL;
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
EXPORT_SYMBOL(acpi_os_delete_semaphore);
......@@ -785,13 +780,12 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
struct semaphore *sem = (struct semaphore *)handle;
int ret = 0;
ACPI_FUNCTION_TRACE("os_wait_semaphore");
if (!sem || (units < 1))
return_ACPI_STATUS(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
if (units > 1)
return_ACPI_STATUS(AE_SUPPORT);
return AE_SUPPORT;
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n",
handle, units, timeout));
......@@ -850,7 +844,7 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
units, timeout));
}
return_ACPI_STATUS(status);
return status;
}
EXPORT_SYMBOL(acpi_os_wait_semaphore);
......@@ -862,20 +856,19 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units)
{
struct semaphore *sem = (struct semaphore *)handle;
ACPI_FUNCTION_TRACE("os_signal_semaphore");
if (!sem || (units < 1))
return_ACPI_STATUS(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
if (units > 1)
return_ACPI_STATUS(AE_SUPPORT);
return AE_SUPPORT;
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Signaling semaphore[%p|%d]\n", handle,
units));
up(sem);
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
EXPORT_SYMBOL(acpi_os_signal_semaphore);
......
drivers/acpi/pci_bind.c
浏览文件 @ d550d98d
......@@ -47,11 +47,10 @@ struct acpi_pci_data {
static void acpi_pci_data_handler(acpi_handle handle, u32 function,
void *context)
{
ACPI_FUNCTION_TRACE("acpi_pci_data_handler");
/* TBD: Anything we need to do here? */
return_VOID;
return;
}
/**
......@@ -68,17 +67,16 @@ acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
struct acpi_device *device = NULL;
struct acpi_pci_data *data = NULL;
ACPI_FUNCTION_TRACE("acpi_get_pci_id");
if (!id)
return_ACPI_STATUS(AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
result = acpi_bus_get_device(handle, &device);
if (result) {
printk(KERN_ERR PREFIX
"Invalid ACPI Bus context for device %s\n",
acpi_device_bid(device));
return_ACPI_STATUS(AE_NOT_EXIST);
return AE_NOT_EXIST;
}
status = acpi_get_data(handle, acpi_pci_data_handler, (void **)&data);
......@@ -86,7 +84,7 @@ acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
ACPI_EXCEPTION((AE_INFO, status,
"Invalid ACPI-PCI context for device %s",
acpi_device_bid(device)));
return_ACPI_STATUS(status);
return status;
}
*id = data->id;
......@@ -103,7 +101,7 @@ acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
acpi_device_bid(device), id->segment, id->bus,
id->device, id->function));
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
EXPORT_SYMBOL(acpi_get_pci_id);
......@@ -120,14 +118,13 @@ int acpi_pci_bind(struct acpi_device *device)
struct pci_dev *dev;
struct pci_bus *bus;
ACPI_FUNCTION_TRACE("acpi_pci_bind");
if (!device || !device->parent)
return_VALUE(-EINVAL);
return -EINVAL;
pathname = kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
if (!pathname)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.length = ACPI_PATHNAME_MAX;
buffer.pointer = pathname;
......@@ -135,7 +132,7 @@ int acpi_pci_bind(struct acpi_device *device)
data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
if (!data) {
kfree(pathname);
return_VALUE(-ENOMEM);
return -ENOMEM;
}
memset(data, 0, sizeof(struct acpi_pci_data));
......@@ -269,7 +266,7 @@ int acpi_pci_bind(struct acpi_device *device)
if (result)
kfree(data);
return_VALUE(result);
return result;
}
int acpi_pci_unbind(struct acpi_device *device)
......@@ -280,14 +277,13 @@ int acpi_pci_unbind(struct acpi_device *device)
char *pathname = NULL;
struct acpi_buffer buffer = { 0, NULL };
ACPI_FUNCTION_TRACE("acpi_pci_unbind");
if (!device || !device->parent)
return_VALUE(-EINVAL);
return -EINVAL;
pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
if (!pathname)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.length = ACPI_PATHNAME_MAX;
......@@ -322,7 +318,7 @@ int acpi_pci_unbind(struct acpi_device *device)
kfree(data);
end:
return_VALUE(result);
return result;
}
int
......@@ -335,11 +331,10 @@ acpi_pci_bind_root(struct acpi_device *device,
char *pathname = NULL;
struct acpi_buffer buffer = { 0, NULL };
ACPI_FUNCTION_TRACE("acpi_pci_bind_root");
pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
if (!pathname)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.length = ACPI_PATHNAME_MAX;
......@@ -347,13 +342,13 @@ acpi_pci_bind_root(struct acpi_device *device,
if (!device || !id || !bus) {
kfree(pathname);
return_VALUE(-EINVAL);
return -EINVAL;
}
data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
if (!data) {
kfree(pathname);
return_VALUE(-ENOMEM);
return -ENOMEM;
}
memset(data, 0, sizeof(struct acpi_pci_data));
......@@ -381,5 +376,5 @@ acpi_pci_bind_root(struct acpi_device *device,
if (result != 0)
kfree(data);
return_VALUE(result);
return result;
}
drivers/acpi/pci_irq.c
浏览文件 @ d550d98d
......@@ -55,10 +55,9 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
struct list_head *node = NULL;
struct acpi_prt_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_irq_find_prt_entry");
if (!acpi_prt.count)
return_PTR(NULL);
return NULL;
/*
* Parse through all PRT entries looking for a match on the specified
......@@ -73,12 +72,12 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
&& (device == entry->id.device)
&& (pin == entry->pin)) {
spin_unlock(&acpi_prt_lock);
return_PTR(entry);
return entry;
}
}
spin_unlock(&acpi_prt_lock);
return_PTR(NULL);
return NULL;
}
static int
......@@ -87,14 +86,13 @@ acpi_pci_irq_add_entry(acpi_handle handle,
{
struct acpi_prt_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_irq_add_entry");
if (!prt)
return_VALUE(-EINVAL);
return -EINVAL;
entry = kmalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
if (!entry)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(entry, 0, sizeof(struct acpi_prt_entry));
entry->id.segment = segment;
......@@ -141,7 +139,7 @@ acpi_pci_irq_add_entry(acpi_handle handle,
acpi_prt.count++;
spin_unlock(&acpi_prt_lock);
return_VALUE(0);
return 0;
}
static void
......@@ -163,11 +161,10 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
struct acpi_pci_routing_table *entry = NULL;
static int first_time = 1;
ACPI_FUNCTION_TRACE("acpi_pci_irq_add_prt");
pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
if (!pathname)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(pathname, 0, ACPI_PATHNAME_MAX);
if (first_time) {
......@@ -199,12 +196,12 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
if (status != AE_BUFFER_OVERFLOW) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
acpi_format_exception(status)));
return_VALUE(-ENODEV);
return -ENODEV;
}
prt = kmalloc(buffer.length, GFP_KERNEL);
if (!prt) {
return_VALUE(-ENOMEM);
return -ENOMEM;
}
memset(prt, 0, buffer.length);
buffer.pointer = prt;
......@@ -214,7 +211,7 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
acpi_format_exception(status)));
kfree(buffer.pointer);
return_VALUE(-ENODEV);
return -ENODEV;
}
entry = prt;
......@@ -227,7 +224,7 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
kfree(prt);
return_VALUE(0);
return 0;
}
void acpi_pci_irq_del_prt(int segment, int bus)
......@@ -262,7 +259,6 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
{
int irq;
ACPI_FUNCTION_TRACE("acpi_pci_allocate_irq");
if (entry->link.handle) {
irq = acpi_pci_link_allocate_irq(entry->link.handle,
......@@ -271,7 +267,7 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
if (irq < 0) {
printk(KERN_WARNING PREFIX
"Invalid IRQ link routing entry\n");
return_VALUE(-1);
return -1;
}
} else {
irq = entry->link.index;
......@@ -280,7 +276,7 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
return_VALUE(irq);
return irq;
}
static int
......@@ -289,13 +285,12 @@ acpi_pci_free_irq(struct acpi_prt_entry *entry,
{
int irq;
ACPI_FUNCTION_TRACE("acpi_pci_free_irq");
if (entry->link.handle) {
irq = acpi_pci_link_free_irq(entry->link.handle);
} else {
irq = entry->link.index;
}
return_VALUE(irq);
return irq;
}
/*
......@@ -315,7 +310,6 @@ acpi_pci_irq_lookup(struct pci_bus *bus,
int bus_nr = bus->number;
int ret;
ACPI_FUNCTION_TRACE("acpi_pci_irq_lookup");
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Searching for PRT entry for %02x:%02x:%02x[%c]\n",
......@@ -324,11 +318,11 @@ acpi_pci_irq_lookup(struct pci_bus *bus,
entry = acpi_pci_irq_find_prt_entry(segment, bus_nr, device, pin);
if (!entry) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "PRT entry not found\n"));
return_VALUE(-1);
return -1;
}
ret = func(entry, triggering, polarity, link);
return_VALUE(ret);
return ret;
}
/*
......@@ -346,10 +340,9 @@ acpi_pci_irq_derive(struct pci_dev *dev,
int irq = -1;
u8 bridge_pin = 0;
ACPI_FUNCTION_TRACE("acpi_pci_irq_derive");
if (!dev)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* Attempt to derive an IRQ for this device from a parent bridge's
......@@ -366,7 +359,7 @@ acpi_pci_irq_derive(struct pci_dev *dev,
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No interrupt pin configured for device %s\n",
pci_name(bridge)));
return_VALUE(-1);
return -1;
}
/* Pin is from 0 to 3 */
bridge_pin--;
......@@ -381,13 +374,13 @@ acpi_pci_irq_derive(struct pci_dev *dev,
if (irq < 0) {
printk(KERN_WARNING PREFIX "Unable to derive IRQ for device %s\n",
pci_name(dev));
return_VALUE(-1);
return -1;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Derive IRQ %d for device %s from %s\n",
irq, pci_name(dev), pci_name(bridge)));
return_VALUE(irq);
return irq;
}
/*
......@@ -405,23 +398,22 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
char *link = NULL;
int rc;
ACPI_FUNCTION_TRACE("acpi_pci_irq_enable");
if (!dev)
return_VALUE(-EINVAL);
return -EINVAL;
pin = dev->pin;
if (!pin) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No interrupt pin configured for device %s\n",
pci_name(dev)));
return_VALUE(0);
return 0;
}
pin--;
if (!dev->bus) {
printk(KERN_ERR PREFIX "Invalid (NULL) 'bus' field\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
/*
......@@ -453,10 +445,10 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
printk(" - using IRQ %d\n", dev->irq);
acpi_register_gsi(dev->irq, ACPI_LEVEL_SENSITIVE,
ACPI_ACTIVE_LOW);
return_VALUE(0);
return 0;
} else {
printk("\n");
return_VALUE(0);
return 0;
}
}
......@@ -464,7 +456,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
if (rc < 0) {
printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: failed "
"to register GSI\n", pci_name(dev), ('A' + pin));
return_VALUE(rc);
return rc;
}
dev->irq = rc;
......@@ -478,7 +470,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
(triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
(polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
return_VALUE(0);
return 0;
}
EXPORT_SYMBOL(acpi_pci_irq_enable);
......@@ -495,14 +487,13 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
int triggering = ACPI_LEVEL_SENSITIVE;
int polarity = ACPI_ACTIVE_LOW;
ACPI_FUNCTION_TRACE("acpi_pci_irq_disable");
if (!dev || !dev->bus)
return_VOID;
return;
pin = dev->pin;
if (!pin)
return_VOID;
return;
pin--;
/*
......@@ -520,7 +511,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
&triggering, &polarity, NULL,
acpi_pci_free_irq);
if (gsi < 0)
return_VOID;
return;
/*
* TBD: It might be worth clearing dev->irq by magic constant
......@@ -532,5 +523,5 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
acpi_unregister_gsi(gsi);
return_VOID;
return;
}
drivers/acpi/pci_link.c
浏览文件 @ d550d98d
......@@ -107,17 +107,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
struct acpi_pci_link *link = (struct acpi_pci_link *)context;
u32 i = 0;
ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible");
switch (resource->type) {
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
return_ACPI_STATUS(AE_OK);
return AE_OK;
case ACPI_RESOURCE_TYPE_IRQ:
{
struct acpi_resource_irq *p = &resource->data.irq;
if (!p || !p->interrupt_count) {
printk(KERN_WARNING PREFIX "Blank IRQ resource\n");
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
for (i = 0;
(i < p->interrupt_count
......@@ -142,7 +141,7 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
if (!p || !p->interrupt_count) {
printk(KERN_WARNING PREFIX
"Blank EXT IRQ resource\n");
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
for (i = 0;
(i < p->interrupt_count
......@@ -162,33 +161,32 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
}
default:
printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n");
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
return_ACPI_STATUS(AE_CTRL_TERMINATE);
return AE_CTRL_TERMINATE;
}
static int acpi_pci_link_get_possible(struct acpi_pci_link *link)
{
acpi_status status;
ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible");
if (!link)
return_VALUE(-EINVAL);
return -EINVAL;
status = acpi_walk_resources(link->handle, METHOD_NAME__PRS,
acpi_pci_link_check_possible, link);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS"));
return_VALUE(-ENODEV);
return -ENODEV;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Found %d possible IRQs\n",
link->irq.possible_count));
return_VALUE(0);
return 0;
}
static acpi_status
......@@ -196,7 +194,6 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
{
int *irq = (int *)context;
ACPI_FUNCTION_TRACE("acpi_pci_link_check_current");
switch (resource->type) {
case ACPI_RESOURCE_TYPE_IRQ:
......@@ -209,7 +206,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Blank IRQ resource\n"));
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
*irq = p->interrupts[0];
break;
......@@ -225,7 +222,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
*/
printk(KERN_WARNING PREFIX
"Blank EXT IRQ resource\n");
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
*irq = p->interrupts[0];
break;
......@@ -234,9 +231,9 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
default:
printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type);
case ACPI_RESOURCE_TYPE_END_TAG:
return_ACPI_STATUS(AE_OK);
return AE_OK;
}
return_ACPI_STATUS(AE_CTRL_TERMINATE);
return AE_CTRL_TERMINATE;
}
/*
......@@ -252,10 +249,9 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
acpi_status status = AE_OK;
int irq = 0;
ACPI_FUNCTION_TRACE("acpi_pci_link_get_current");
if (!link || !link->handle)
return_VALUE(-EINVAL);
return -EINVAL;
link->irq.active = 0;
......@@ -270,7 +266,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
if (!link->device->status.enabled) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link disabled\n"));
return_VALUE(0);
return 0;
}
}
......@@ -296,7 +292,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active));
end:
return_VALUE(result);
return result;
}
static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
......@@ -309,14 +305,13 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
} *resource;
struct acpi_buffer buffer = { 0, NULL };
ACPI_FUNCTION_TRACE("acpi_pci_link_set");
if (!link || !irq)
return_VALUE(-EINVAL);
return -EINVAL;
resource = kmalloc(sizeof(*resource) + 1, GFP_ATOMIC);
if (!resource)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(resource, 0, sizeof(*resource) + 1);
buffer.length = sizeof(*resource) + 1;
......@@ -413,7 +408,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
end:
kfree(resource);
return_VALUE(result);
return result;
}
/* --------------------------------------------------------------------------
......@@ -487,7 +482,6 @@ int __init acpi_irq_penalty_init(void)
struct acpi_pci_link *link = NULL;
int i = 0;
ACPI_FUNCTION_TRACE("acpi_irq_penalty_init");
/*
* Update penalties to facilitate IRQ balancing.
......@@ -524,7 +518,7 @@ int __init acpi_irq_penalty_init(void)
/* Add a penalty for the SCI */
acpi_irq_penalty[acpi_fadt.sci_int] += PIRQ_PENALTY_PCI_USING;
return_VALUE(0);
return 0;
}
static int acpi_irq_balance; /* 0: static, 1: balance */
......@@ -534,13 +528,12 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
int irq;
int i;
ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
if (link->irq.initialized) {
if (link->refcnt == 0)
/* This means the link is disabled but initialized */
acpi_pci_link_set(link, link->irq.active);
return_VALUE(0);
return 0;
}
/*
......@@ -587,7 +580,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
"Try pci=noacpi or acpi=off\n",
acpi_device_name(link->device),
acpi_device_bid(link->device));
return_VALUE(-ENODEV);
return -ENODEV;
} else {
acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
printk(PREFIX "%s [%s] enabled at IRQ %d\n",
......@@ -597,7 +590,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
link->irq.initialized = 1;
return_VALUE(0);
return 0;
}
/*
......@@ -615,36 +608,35 @@ acpi_pci_link_allocate_irq(acpi_handle handle,
struct acpi_device *device = NULL;
struct acpi_pci_link *link = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq");
result = acpi_bus_get_device(handle, &device);
if (result) {
printk(KERN_ERR PREFIX "Invalid link device\n");
return_VALUE(-1);
return -1;
}
link = (struct acpi_pci_link *)acpi_driver_data(device);
if (!link) {
printk(KERN_ERR PREFIX "Invalid link context\n");
return_VALUE(-1);
return -1;
}
/* TBD: Support multiple index (IRQ) entries per Link Device */
if (index) {
printk(KERN_ERR PREFIX "Invalid index %d\n", index);
return_VALUE(-1);
return -1;
}
mutex_lock(&acpi_link_lock);
if (acpi_pci_link_allocate(link)) {
mutex_unlock(&acpi_link_lock);
return_VALUE(-1);
return -1;
}
if (!link->irq.active) {
mutex_unlock(&acpi_link_lock);
printk(KERN_ERR PREFIX "Link active IRQ is 0!\n");
return_VALUE(-1);
return -1;
}
link->refcnt++;
mutex_unlock(&acpi_link_lock);
......@@ -658,7 +650,7 @@ acpi_pci_link_allocate_irq(acpi_handle handle,
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Link %s is referenced\n",
acpi_device_bid(link->device)));
return_VALUE(link->irq.active);
return (link->irq.active);
}
/*
......@@ -671,25 +663,24 @@ int acpi_pci_link_free_irq(acpi_handle handle)
struct acpi_pci_link *link = NULL;
acpi_status result;
ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq");
result = acpi_bus_get_device(handle, &device);
if (result) {
printk(KERN_ERR PREFIX "Invalid link device\n");
return_VALUE(-1);
return -1;
}
link = (struct acpi_pci_link *)acpi_driver_data(device);
if (!link) {
printk(KERN_ERR PREFIX "Invalid link context\n");
return_VALUE(-1);
return -1;
}
mutex_lock(&acpi_link_lock);
if (!link->irq.initialized) {
mutex_unlock(&acpi_link_lock);
printk(KERN_ERR PREFIX "Link isn't initialized\n");
return_VALUE(-1);
return -1;
}
#ifdef FUTURE_USE
/*
......@@ -711,7 +702,7 @@ int acpi_pci_link_free_irq(acpi_handle handle)
acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
}
mutex_unlock(&acpi_link_lock);
return_VALUE(link->irq.active);
return (link->irq.active);
}
/* --------------------------------------------------------------------------
......@@ -725,14 +716,13 @@ static int acpi_pci_link_add(struct acpi_device *device)
int i = 0;
int found = 0;
ACPI_FUNCTION_TRACE("acpi_pci_link_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
link = kmalloc(sizeof(struct acpi_pci_link), GFP_KERNEL);
if (!link)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(link, 0, sizeof(struct acpi_pci_link));
link->device = device;
......@@ -781,17 +771,16 @@ static int acpi_pci_link_add(struct acpi_device *device)
if (result)
kfree(link);
return_VALUE(result);
return result;
}
static int acpi_pci_link_resume(struct acpi_pci_link *link)
{
ACPI_FUNCTION_TRACE("acpi_pci_link_resume");
if (link->refcnt && link->irq.active && link->irq.initialized)
return_VALUE(acpi_pci_link_set(link, link->irq.active));
return (acpi_pci_link_set(link, link->irq.active));
else
return_VALUE(0);
return 0;
}
/*
......@@ -804,7 +793,6 @@ static int irqrouter_resume(struct sys_device *dev)
struct list_head *node = NULL;
struct acpi_pci_link *link = NULL;
ACPI_FUNCTION_TRACE("irqrouter_resume");
/* Make sure SCI is enabled again (Apple firmware bug?) */
acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
......@@ -819,17 +807,16 @@ static int irqrouter_resume(struct sys_device *dev)
acpi_pci_link_resume(link);
}
acpi_in_resume = 0;
return_VALUE(0);
return 0;
}
static int acpi_pci_link_remove(struct acpi_device *device, int type)
{
struct acpi_pci_link *link = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_link_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
link = (struct acpi_pci_link *)acpi_driver_data(device);
......@@ -839,7 +826,7 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type)
kfree(link);
return_VALUE(0);
return 0;
}
/*
......@@ -945,34 +932,32 @@ static int __init irqrouter_init_sysfs(void)
{
int error;
ACPI_FUNCTION_TRACE("irqrouter_init_sysfs");
if (acpi_disabled || acpi_noirq)
return_VALUE(0);
return 0;
error = sysdev_class_register(&irqrouter_sysdev_class);
if (!error)
error = sysdev_register(&device_irqrouter);
return_VALUE(error);
return error;
}
device_initcall(irqrouter_init_sysfs);
static int __init acpi_pci_link_init(void)
{
ACPI_FUNCTION_TRACE("acpi_pci_link_init");
if (acpi_noirq)
return_VALUE(0);
return 0;
acpi_link.count = 0;
INIT_LIST_HEAD(&acpi_link.entries);
if (acpi_bus_register_driver(&acpi_pci_link_driver) < 0)
return_VALUE(-ENODEV);
return -ENODEV;
return_VALUE(0);
return 0;
}
subsys_initcall(acpi_pci_link_init);
drivers/acpi/pci_root.c
浏览文件 @ d550d98d
......@@ -160,14 +160,13 @@ static int acpi_pci_root_add(struct acpi_device *device)
unsigned long value = 0;
acpi_handle handle = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_root_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
root = kmalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(root, 0, sizeof(struct acpi_pci_root));
INIT_LIST_HEAD(&root->node);
......@@ -307,46 +306,43 @@ static int acpi_pci_root_add(struct acpi_device *device)
kfree(root);
}
return_VALUE(result);
return result;
}
static int acpi_pci_root_start(struct acpi_device *device)
{
struct acpi_pci_root *root;
ACPI_FUNCTION_TRACE("acpi_pci_root_start");
list_for_each_entry(root, &acpi_pci_roots, node) {
if (root->handle == device->handle) {
pci_bus_add_devices(root->bus);
return_VALUE(0);
return 0;
}
}
return_VALUE(-ENODEV);
return -ENODEV;
}
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_root_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
root = (struct acpi_pci_root *)acpi_driver_data(device);
kfree(root);
return_VALUE(0);
return 0;
}
static int __init acpi_pci_root_init(void)
{
ACPI_FUNCTION_TRACE("acpi_pci_root_init");
if (acpi_pci_disabled)
return_VALUE(0);
return 0;
/* DEBUG:
acpi_dbg_layer = ACPI_PCI_COMPONENT;
......@@ -354,9 +350,9 @@ static int __init acpi_pci_root_init(void)
*/
if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
return_VALUE(-ENODEV);
return -ENODEV;
return_VALUE(0);
return 0;
}
subsys_initcall(acpi_pci_root_init);
drivers/acpi/power.c
浏览文件 @ d550d98d
......@@ -98,22 +98,21 @@ acpi_power_get_context(acpi_handle handle,
int result = 0;
struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_power_get_context");
if (!resource)
return_VALUE(-ENODEV);
return -ENODEV;
result = acpi_bus_get_device(handle, &device);
if (result) {
printk(KERN_WARNING PREFIX "Getting context [%p]\n", handle);
return_VALUE(result);
return result;
}
*resource = (struct acpi_power_resource *)acpi_driver_data(device);
if (!resource)
return_VALUE(-ENODEV);
return -ENODEV;
return_VALUE(0);
return 0;
}
static int acpi_power_get_state(struct acpi_power_resource *resource)
......@@ -121,14 +120,13 @@ static int acpi_power_get_state(struct acpi_power_resource *resource)
acpi_status status = AE_OK;
unsigned long sta = 0;
ACPI_FUNCTION_TRACE("acpi_power_get_state");
if (!resource)
return_VALUE(-EINVAL);
return -EINVAL;
status = acpi_evaluate_integer(resource->handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
if (sta & 0x01)
resource->state = ACPI_POWER_RESOURCE_STATE_ON;
......@@ -138,7 +136,7 @@ static int acpi_power_get_state(struct acpi_power_resource *resource)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
resource->name, resource->state ? "on" : "off"));
return_VALUE(0);
return 0;
}
static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
......@@ -147,20 +145,19 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
struct acpi_power_resource *resource = NULL;
u32 i = 0;
ACPI_FUNCTION_TRACE("acpi_power_get_list_state");
if (!list || !state)
return_VALUE(-EINVAL);
return -EINVAL;
/* The state of the list is 'on' IFF all resources are 'on'. */
for (i = 0; i < list->count; i++) {
result = acpi_power_get_context(list->handles[i], &resource);
if (result)
return_VALUE(result);
return result;
result = acpi_power_get_state(resource);
if (result)
return_VALUE(result);
return result;
*state = resource->state;
......@@ -171,7 +168,7 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource list is %s\n",
*state ? "on" : "off"));
return_VALUE(result);
return result;
}
static int acpi_power_on(acpi_handle handle)
......@@ -181,11 +178,10 @@ static int acpi_power_on(acpi_handle handle)
struct acpi_device *device = NULL;
struct acpi_power_resource *resource = NULL;
ACPI_FUNCTION_TRACE("acpi_power_on");
result = acpi_power_get_context(handle, &resource);
if (result)
return_VALUE(result);
return result;
resource->references++;
......@@ -193,29 +189,29 @@ static int acpi_power_on(acpi_handle handle)
|| (resource->state == ACPI_POWER_RESOURCE_STATE_ON)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already on\n",
resource->name));
return_VALUE(0);
return 0;
}
status = acpi_evaluate_object(resource->handle, "_ON", NULL, NULL);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
result = acpi_power_get_state(resource);
if (result)
return_VALUE(result);
return result;
if (resource->state != ACPI_POWER_RESOURCE_STATE_ON)
return_VALUE(-ENOEXEC);
return -ENOEXEC;
/* Update the power resource's _device_ power state */
result = acpi_bus_get_device(resource->handle, &device);
if (result)
return_VALUE(result);
return result;
device->power.state = ACPI_STATE_D0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned on\n",
resource->name));
return_VALUE(0);
return 0;
}
static int acpi_power_off_device(acpi_handle handle)
......@@ -225,11 +221,10 @@ static int acpi_power_off_device(acpi_handle handle)
struct acpi_device *device = NULL;
struct acpi_power_resource *resource = NULL;
ACPI_FUNCTION_TRACE("acpi_power_off_device");
result = acpi_power_get_context(handle, &resource);
if (result)
return_VALUE(result);
return result;
if (resource->references)
resource->references--;
......@@ -238,35 +233,35 @@ static int acpi_power_off_device(acpi_handle handle)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Resource [%s] is still in use, dereferencing\n",
device->pnp.bus_id));
return_VALUE(0);
return 0;
}
if (resource->state == ACPI_POWER_RESOURCE_STATE_OFF) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already off\n",
device->pnp.bus_id));
return_VALUE(0);
return 0;
}
status = acpi_evaluate_object(resource->handle, "_OFF", NULL, NULL);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
result = acpi_power_get_state(resource);
if (result)
return_VALUE(result);
return result;
if (resource->state != ACPI_POWER_RESOURCE_STATE_OFF)
return_VALUE(-ENOEXEC);
return -ENOEXEC;
/* Update the power resource's _device_ power state */
result = acpi_bus_get_device(resource->handle, &device);
if (result)
return_VALUE(result);
return result;
device->power.state = ACPI_STATE_D3;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n",
resource->name));
return_VALUE(0);
return 0;
}
/*
......@@ -282,9 +277,8 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev)
int i;
int ret = 0;
ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device_power");
if (!dev || !dev->wakeup.flags.valid)
return_VALUE(-1);
return -1;
arg.integer.value = 1;
/* Open power resource */
......@@ -293,7 +287,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev)
if (ret) {
printk(KERN_ERR PREFIX "Transition power state\n");
dev->wakeup.flags.valid = 0;
return_VALUE(-1);
return -1;
}
}
......@@ -305,7 +299,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev)
ret = -1;
}
return_VALUE(ret);
return ret;
}
/*
......@@ -321,10 +315,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
int i;
int ret = 0;
ACPI_FUNCTION_TRACE("acpi_disable_wakeup_device_power");
if (!dev || !dev->wakeup.flags.valid)
return_VALUE(-1);
return -1;
arg.integer.value = 0;
/* Execute PSW */
......@@ -332,7 +325,7 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
printk(KERN_ERR PREFIX "Evaluate _PSW\n");
dev->wakeup.flags.valid = 0;
return_VALUE(-1);
return -1;
}
/* Close power resource */
......@@ -341,11 +334,11 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
if (ret) {
printk(KERN_ERR PREFIX "Transition power state\n");
dev->wakeup.flags.valid = 0;
return_VALUE(-1);
return -1;
}
}
return_VALUE(ret);
return ret;
}
/* --------------------------------------------------------------------------
......@@ -359,10 +352,9 @@ int acpi_power_get_inferred_state(struct acpi_device *device)
int list_state = 0;
int i = 0;
ACPI_FUNCTION_TRACE("acpi_power_get_inferred_state");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
device->power.state = ACPI_STATE_UNKNOWN;
......@@ -377,17 +369,17 @@ int acpi_power_get_inferred_state(struct acpi_device *device)
result = acpi_power_get_list_state(list, &list_state);
if (result)
return_VALUE(result);
return result;
if (list_state == ACPI_POWER_RESOURCE_STATE_ON) {
device->power.state = i;
return_VALUE(0);
return 0;
}
}
device->power.state = ACPI_STATE_D3;
return_VALUE(0);
return 0;
}
int acpi_power_transition(struct acpi_device *device, int state)
......@@ -397,14 +389,13 @@ int acpi_power_transition(struct acpi_device *device, int state)
struct acpi_handle_list *tl = NULL; /* Target Resources */
int i = 0;
ACPI_FUNCTION_TRACE("acpi_power_transition");
if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
return_VALUE(-EINVAL);
return -EINVAL;
if ((device->power.state < ACPI_STATE_D0)
|| (device->power.state > ACPI_STATE_D3))
return_VALUE(-ENODEV);
return -ENODEV;
cl = &device->power.states[device->power.state].resources;
tl = &device->power.states[state].resources;
......@@ -444,7 +435,7 @@ int acpi_power_transition(struct acpi_device *device, int state)
printk(KERN_WARNING PREFIX "Transitioning device [%s] to D%d\n",
device->pnp.bus_id, state);
return_VALUE(result);
return result;
}
/* --------------------------------------------------------------------------
......@@ -457,7 +448,6 @@ static int acpi_power_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_power_resource *resource = NULL;
ACPI_FUNCTION_TRACE("acpi_power_seq_show");
resource = (struct acpi_power_resource *)seq->private;
......@@ -484,7 +474,7 @@ static int acpi_power_seq_show(struct seq_file *seq, void *offset)
resource->order, resource->references);
end:
return_VALUE(0);
return 0;
}
static int acpi_power_open_fs(struct inode *inode, struct file *file)
......@@ -496,34 +486,32 @@ static int acpi_power_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_power_add_fs");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_power_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
}
/* 'status' [R] */
entry = create_proc_entry(ACPI_POWER_FILE_STATUS,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-EIO);
return -EIO;
else {
entry->proc_fops = &acpi_power_fops;
entry->data = acpi_driver_data(device);
}
return_VALUE(0);
return 0;
}
static int acpi_power_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_power_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_POWER_FILE_STATUS,
......@@ -532,7 +520,7 @@ static int acpi_power_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* --------------------------------------------------------------------------
......@@ -547,14 +535,13 @@ static int acpi_power_add(struct acpi_device *device)
union acpi_object acpi_object;
struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
ACPI_FUNCTION_TRACE("acpi_power_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
resource = kmalloc(sizeof(struct acpi_power_resource), GFP_KERNEL);
if (!resource)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(resource, 0, sizeof(struct acpi_power_resource));
resource->handle = device->handle;
......@@ -599,17 +586,16 @@ static int acpi_power_add(struct acpi_device *device)
if (result)
kfree(resource);
return_VALUE(result);
return result;
}
static int acpi_power_remove(struct acpi_device *device, int type)
{
struct acpi_power_resource *resource = NULL;
ACPI_FUNCTION_TRACE("acpi_power_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
resource = (struct acpi_power_resource *)acpi_driver_data(device);
......@@ -617,31 +603,30 @@ static int acpi_power_remove(struct acpi_device *device, int type)
kfree(resource);
return_VALUE(0);
return 0;
}
static int __init acpi_power_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_power_init");
if (acpi_disabled)
return_VALUE(0);
return 0;
INIT_LIST_HEAD(&acpi_power_resource_list);
acpi_power_dir = proc_mkdir(ACPI_POWER_CLASS, acpi_root_dir);
if (!acpi_power_dir)
return_VALUE(-ENODEV);
return -ENODEV;
result = acpi_bus_register_driver(&acpi_power_driver);
if (result < 0) {
remove_proc_entry(ACPI_POWER_CLASS, acpi_root_dir);
return_VALUE(-ENODEV);
return -ENODEV;
}
return_VALUE(0);
return 0;
}
subsys_initcall(acpi_power_init);
drivers/acpi/processor_core.c
浏览文件 @ d550d98d
......@@ -122,10 +122,9 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
u8 value1 = 0;
u8 value2 = 0;
ACPI_FUNCTION_TRACE("acpi_processor_errata_piix4");
if (!dev)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* Note that 'dev' references the PIIX4 ACPI Controller.
......@@ -218,7 +217,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Type-F DMA livelock erratum (C3 disabled)\n"));
return_VALUE(0);
return 0;
}
static int acpi_processor_errata(struct acpi_processor *pr)
......@@ -226,10 +225,9 @@ static int acpi_processor_errata(struct acpi_processor *pr)
int result = 0;
struct pci_dev *dev = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_errata");
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* PIIX4
......@@ -242,7 +240,7 @@ static int acpi_processor_errata(struct acpi_processor *pr)
pci_dev_put(dev);
}
return_VALUE(result);
return result;
}
/* --------------------------------------------------------------------------
......@@ -258,10 +256,9 @@ static int acpi_processor_set_pdc(struct acpi_processor *pr)
struct acpi_object_list *pdc_in = pr->pdc;
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_processor_set_pdc");
if (!pdc_in)
return_VALUE(status);
return status;
status = acpi_evaluate_object(pr->handle, "_PDC", pdc_in, NULL);
......@@ -269,7 +266,7 @@ static int acpi_processor_set_pdc(struct acpi_processor *pr)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Could not evaluate _PDC, using legacy perf. control...\n"));
return_VALUE(status);
return status;
}
/* --------------------------------------------------------------------------
......@@ -282,7 +279,6 @@ static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_processor *pr = (struct acpi_processor *)seq->private;
ACPI_FUNCTION_TRACE("acpi_processor_info_seq_show");
if (!pr)
goto end;
......@@ -301,7 +297,7 @@ static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
pr->flags.limit ? "yes" : "no");
end:
return_VALUE(0);
return 0;
}
static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
......@@ -314,13 +310,12 @@ static int acpi_processor_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_processor_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
return -ENODEV;
}
acpi_device_dir(device)->owner = THIS_MODULE;
......@@ -328,7 +323,7 @@ static int acpi_processor_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_PROCESSOR_FILE_INFO,
S_IRUGO, acpi_device_dir(device));
if (!entry)
return_VALUE(-EIO);
return -EIO;
else {
entry->proc_fops = &acpi_processor_info_fops;
entry->data = acpi_driver_data(device);
......@@ -340,7 +335,7 @@ static int acpi_processor_add_fs(struct acpi_device *device)
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device));
if (!entry)
return_VALUE(-EIO);
return -EIO;
else {
entry->proc_fops = &acpi_processor_throttling_fops;
entry->data = acpi_driver_data(device);
......@@ -352,19 +347,18 @@ static int acpi_processor_add_fs(struct acpi_device *device)
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device));
if (!entry)
return_VALUE( -EIO);
return -EIO;
else {
entry->proc_fops = &acpi_processor_limit_fops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
return_VALUE(0);
return 0;
}
static int acpi_processor_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_processor_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
......@@ -377,7 +371,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
return 0;
}
/* Use the acpiid in MADT to map cpus in case of SMP */
......@@ -424,10 +418,9 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
int cpu_index;
static int cpu0_initialized;
ACPI_FUNCTION_TRACE("acpi_processor_get_info");
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
if (num_online_cpus() > 1)
errata.smp = TRUE;
......@@ -454,7 +447,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
/*
......@@ -486,7 +479,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
printk(KERN_ERR PREFIX
"Getting cpuindex for acpiid 0x%x\n",
pr->acpi_id);
return_VALUE(-ENODEV);
return -ENODEV;
}
}
......@@ -521,7 +514,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
acpi_processor_get_throttling_info(pr);
acpi_processor_get_limit_info(pr);
return_VALUE(0);
return 0;
}
static void *processor_device_array[NR_CPUS];
......@@ -532,14 +525,13 @@ static int acpi_processor_start(struct acpi_device *device)
acpi_status status = AE_OK;
struct acpi_processor *pr;
ACPI_FUNCTION_TRACE("acpi_processor_start");
pr = acpi_driver_data(device);
result = acpi_processor_get_info(pr);
if (result) {
/* Processor is physically not present */
return_VALUE(0);
return 0;
}
BUG_ON((pr->id >= NR_CPUS) || (pr->id < 0));
......@@ -553,7 +545,7 @@ static int acpi_processor_start(struct acpi_device *device)
processor_device_array[pr->id] != (void *)device) {
printk(KERN_WARNING "BIOS reported wrong ACPI id"
"for the processor\n");
return_VALUE(-ENODEV);
return -ENODEV;
}
processor_device_array[pr->id] = (void *)device;
......@@ -581,7 +573,7 @@ static int acpi_processor_start(struct acpi_device *device)
end:
return_VALUE(result);
return result;
}
static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
......@@ -589,13 +581,12 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
struct acpi_processor *pr = (struct acpi_processor *)data;
struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_notify");
if (!pr)
return_VOID;
return;
if (acpi_bus_get_device(pr->handle, &device))
return_VOID;
return;
switch (event) {
case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
......@@ -613,21 +604,20 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static int acpi_processor_add(struct acpi_device *device)
{
struct acpi_processor *pr = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_add");
if (!device)
return_VALUE(-EINVAL);
return -EINVAL;
pr = kmalloc(sizeof(struct acpi_processor), GFP_KERNEL);
if (!pr)
return_VALUE(-ENOMEM);
return -ENOMEM;
memset(pr, 0, sizeof(struct acpi_processor));
pr->handle = device->handle;
......@@ -635,7 +625,7 @@ static int acpi_processor_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
acpi_driver_data(device) = pr;
return_VALUE(0);
return 0;
}
static int acpi_processor_remove(struct acpi_device *device, int type)
......@@ -643,21 +633,20 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
acpi_status status = AE_OK;
struct acpi_processor *pr = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
return -EINVAL;
pr = (struct acpi_processor *)acpi_driver_data(device);
if (pr->id >= NR_CPUS) {
kfree(pr);
return_VALUE(0);
return 0;
}
if (type == ACPI_BUS_REMOVAL_EJECT) {
if (acpi_processor_handle_eject(pr))
return_VALUE(-EINVAL);
return -EINVAL;
}
acpi_processor_power_exit(pr, device);
......@@ -671,7 +660,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
kfree(pr);
return_VALUE(0);
return 0;
}
#ifdef CONFIG_ACPI_HOTPLUG_CPU
......@@ -686,14 +675,13 @@ static int is_processor_present(acpi_handle handle)
acpi_status status;
unsigned long sta = 0;
ACPI_FUNCTION_TRACE("is_processor_present");
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status) || !(sta & ACPI_STA_PRESENT)) {
ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
return_VALUE(0);
return 0;
}
return_VALUE(1);
return 1;
}
static
......@@ -703,30 +691,29 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
struct acpi_device *pdev;
struct acpi_processor *pr;
ACPI_FUNCTION_TRACE("acpi_processor_device_add");
if (acpi_get_parent(handle, &phandle)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
if (acpi_bus_get_device(phandle, &pdev)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
return_VALUE(-ENODEV);
return -ENODEV;
}
acpi_bus_start(*device);
pr = acpi_driver_data(*device);
if (!pr)
return_VALUE(-ENODEV);
return -ENODEV;
if ((pr->id >= 0) && (pr->id < NR_CPUS)) {
kobject_uevent(&(*device)->kobj, KOBJ_ONLINE);
}
return_VALUE(0);
return 0;
}
static void
......@@ -736,7 +723,6 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
struct acpi_device *device = NULL;
int result;
ACPI_FUNCTION_TRACE("acpi_processor_hotplug_notify");
switch (event) {
case ACPI_NOTIFY_BUS_CHECK:
......@@ -788,7 +774,7 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
if (!pr) {
printk(KERN_ERR PREFIX
"Driver data is NULL, dropping EJECT\n");
return_VOID;
return;
}
if ((pr->id < NR_CPUS) && (cpu_present(pr->id)))
......@@ -800,7 +786,7 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
break;
}
return_VOID;
return;
}
static acpi_status
......@@ -839,21 +825,20 @@ processor_walk_namespace_cb(acpi_handle handle,
static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
{
ACPI_FUNCTION_TRACE("acpi_processor_hotadd_init");
if (!is_processor_present(handle)) {
return_VALUE(AE_ERROR);
return AE_ERROR;
}
if (acpi_map_lsapic(handle, p_cpu))
return_VALUE(AE_ERROR);
return AE_ERROR;
if (arch_register_cpu(*p_cpu)) {
acpi_unmap_lsapic(*p_cpu);
return_VALUE(AE_ERROR);
return AE_ERROR;
}
return_VALUE(AE_OK);
return AE_OK;
}
static int acpi_processor_handle_eject(struct acpi_processor *pr)
......@@ -910,20 +895,19 @@ static int __init acpi_processor_init(void)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_processor_init");
memset(&processors, 0, sizeof(processors));
memset(&errata, 0, sizeof(errata));
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return_VALUE(0);
return 0;
acpi_processor_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0) {
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
return_VALUE(0);
return 0;
}
acpi_processor_install_hotplug_notify();
......@@ -932,12 +916,11 @@ static int __init acpi_processor_init(void)
acpi_processor_ppc_init();
return_VALUE(0);
return 0;
}
static void __exit acpi_processor_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_processor_exit");
acpi_processor_ppc_exit();
......@@ -949,7 +932,7 @@ static void __exit acpi_processor_exit(void)
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
return_VOID;
return;
}
module_init(acpi_processor_init);
......
drivers/acpi/processor_idle.c
浏览文件 @ d550d98d
......@@ -517,10 +517,9 @@ static int acpi_processor_set_power_policy(struct acpi_processor *pr)
struct acpi_processor_cx *higher = NULL;
struct acpi_processor_cx *cx;
ACPI_FUNCTION_TRACE("acpi_processor_set_power_policy");
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
/*
* This function sets the default Cx state policy (OS idle handler).
......@@ -544,7 +543,7 @@ static int acpi_processor_set_power_policy(struct acpi_processor *pr)
}
if (!state_is_set)
return_VALUE(-ENODEV);
return -ENODEV;
/* demotion */
for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
......@@ -583,18 +582,17 @@ static int acpi_processor_set_power_policy(struct acpi_processor *pr)
higher = cx;
}
return_VALUE(0);
return 0;
}
static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
{
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_fadt");
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
if (!pr->pblk)
return_VALUE(-ENODEV);
return -ENODEV;
/* if info is obtained from pblk/fadt, type equals state */
pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;
......@@ -606,7 +604,7 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
* an SMP system.
*/
if ((num_online_cpus() > 1) && !acpi_fadt.plvl2_up)
return_VALUE(-ENODEV);
return -ENODEV;
#endif
/* determine C2 and C3 address from pblk */
......@@ -622,12 +620,11 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
pr->power.states[ACPI_STATE_C2].address,
pr->power.states[ACPI_STATE_C3].address));
return_VALUE(0);
return 0;
}
static int acpi_processor_get_power_info_default_c1(struct acpi_processor *pr)
{
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
/* Zero initialize all the C-states info. */
memset(pr->power.states, 0, sizeof(pr->power.states));
......@@ -640,7 +637,7 @@ static int acpi_processor_get_power_info_default_c1(struct acpi_processor *pr)
pr->power.states[ACPI_STATE_C0].valid = 1;
pr->power.states[ACPI_STATE_C1].valid = 1;
return_VALUE(0);
return 0;
}
static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
......@@ -652,10 +649,9 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *cst;
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_cst");
if (nocst)
return_VALUE(-ENODEV);
return -ENODEV;
current_count = 1;
......@@ -667,7 +663,7 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No _CST, giving up\n"));
return_VALUE(-ENODEV);
return -ENODEV;
}
cst = (union acpi_object *)buffer.pointer;
......@@ -773,15 +769,14 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
end:
acpi_os_free(buffer.pointer);
return_VALUE(status);
return status;
}
static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
{
ACPI_FUNCTION_TRACE("acpi_processor_get_power_verify_c2");
if (!cx->address)
return_VOID;
return;
/*
* C2 latency must be less than or equal to 100
......@@ -790,7 +785,7 @@ static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
else if (cx->latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"latency too large [%d]\n", cx->latency));
return_VOID;
return;
}
/*
......@@ -800,7 +795,7 @@ static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
cx->valid = 1;
cx->latency_ticks = US_TO_PM_TIMER_TICKS(cx->latency);
return_VOID;
return;
}
static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
......@@ -808,10 +803,9 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
{
static int bm_check_flag;
ACPI_FUNCTION_TRACE("acpi_processor_get_power_verify_c3");
if (!cx->address)
return_VOID;
return;
/*
* C3 latency must be less than or equal to 1000
......@@ -820,7 +814,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
else if (cx->latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"latency too large [%d]\n", cx->latency));
return_VOID;
return;
}
/*
......@@ -833,7 +827,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
else if (errata.piix4.fdma) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"C3 not supported on PIIX4 with Type-F DMA\n"));
return_VOID;
return;
}
/* All the logic here assumes flags.bm_check is same across all CPUs */
......@@ -850,7 +844,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
if (!pr->flags.bm_control) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"C3 support requires bus mastering control\n"));
return_VOID;
return;
}
} else {
/*
......@@ -861,7 +855,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Cache invalidation should work properly"
" for C3 to be enabled on SMP systems\n"));
return_VOID;
return;
}
acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD,
0, ACPI_MTX_DO_NOT_LOCK);
......@@ -876,7 +870,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
cx->valid = 1;
cx->latency_ticks = US_TO_PM_TIMER_TICKS(cx->latency);
return_VOID;
return;
}
static int acpi_processor_power_verify(struct acpi_processor *pr)
......@@ -935,7 +929,6 @@ static int acpi_processor_get_power_info(struct acpi_processor *pr)
unsigned int i;
int result;
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info");
/* NOTE: the idle thread may not be running while calling
* this function */
......@@ -958,7 +951,7 @@ static int acpi_processor_get_power_info(struct acpi_processor *pr)
*/
result = acpi_processor_set_power_policy(pr);
if (result)
return_VALUE(result);
return result;
/*
* if one state of type C2 or C3 is available, mark this
......@@ -972,24 +965,23 @@ static int acpi_processor_get_power_info(struct acpi_processor *pr)
}
}
return_VALUE(0);
return 0;
}
int acpi_processor_cst_has_changed(struct acpi_processor *pr)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_processor_cst_has_changed");
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
if (nocst) {
return_VALUE(-ENODEV);
return -ENODEV;
}
if (!pr->flags.power_setup_done)
return_VALUE(-ENODEV);
return -ENODEV;
/* Fall back to the default idle loop */
pm_idle = pm_idle_save;
......@@ -1000,7 +992,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
if ((pr->flags.power == 1) && (pr->flags.power_setup_done))
pm_idle = acpi_processor_idle;
return_VALUE(result);
return result;
}
/* proc interface */
......@@ -1010,7 +1002,6 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
struct acpi_processor *pr = (struct acpi_processor *)seq->private;
unsigned int i;
ACPI_FUNCTION_TRACE("acpi_processor_power_seq_show");
if (!pr)
goto end;
......@@ -1068,7 +1059,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
}
end:
return_VALUE(0);
return 0;
}
static int acpi_processor_power_open_fs(struct inode *inode, struct file *file)
......@@ -1092,7 +1083,6 @@ int acpi_processor_power_init(struct acpi_processor *pr,
struct proc_dir_entry *entry = NULL;
unsigned int i;
ACPI_FUNCTION_TRACE("acpi_processor_power_init");
if (!first_run) {
dmi_check_system(processor_power_dmi_table);
......@@ -1104,7 +1094,7 @@ int acpi_processor_power_init(struct acpi_processor *pr,
}
if (!pr)
return_VALUE(-EINVAL);
return -EINVAL;
if (acpi_fadt.cst_cnt && !nocst) {
status =
......@@ -1149,13 +1139,12 @@ int acpi_processor_power_init(struct acpi_processor *pr,
pr->flags.power_setup_done = 1;
return_VALUE(0);
return 0;
}
int acpi_processor_power_exit(struct acpi_processor *pr,
struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_processor_power_exit");
pr->flags.power_setup_done = 0;
......@@ -1175,5 +1164,5 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
cpu_idle_wait();
}
return_VALUE(0);
return 0;
}
drivers/acpi/processor_perflib.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/processor_thermal.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/processor_throttling.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/scan.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/system.c
浏览文件 @ d550d98d
......@@ -47,10 +47,9 @@ extern struct fadt_descriptor acpi_fadt;
static int acpi_system_read_info(struct seq_file *seq, void *offset)
{
ACPI_FUNCTION_TRACE("acpi_system_read_info");
seq_printf(seq, "version: %x\n", ACPI_CA_VERSION);
return_VALUE(0);
return 0;
}
static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
......@@ -80,17 +79,16 @@ acpi_system_read_dsdt(struct file *file,
struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
ssize_t res;
ACPI_FUNCTION_TRACE("acpi_system_read_dsdt");
status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
res = simple_read_from_buffer(buffer, count, ppos,
dsdt.pointer, dsdt.length);
acpi_os_free(dsdt.pointer);
return_VALUE(res);
return res;
}
static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
......@@ -108,17 +106,16 @@ acpi_system_read_fadt(struct file *file,
struct acpi_buffer fadt = { ACPI_ALLOCATE_BUFFER, NULL };
ssize_t res;
ACPI_FUNCTION_TRACE("acpi_system_read_fadt");
status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return -ENODEV;
res = simple_read_from_buffer(buffer, count, ppos,
fadt.pointer, fadt.length);
acpi_os_free(fadt.pointer);
return_VALUE(res);
return res;
}
static int __init acpi_system_init(void)
......@@ -127,10 +124,9 @@ static int __init acpi_system_init(void)
int error = 0;
char *name;
ACPI_FUNCTION_TRACE("acpi_system_init");
if (acpi_disabled)
return_VALUE(0);
return 0;
/* 'info' [R] */
name = ACPI_SYSTEM_FILE_INFO;
......@@ -158,7 +154,7 @@ static int __init acpi_system_init(void)
goto Error;
Done:
return_VALUE(error);
return error;
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
......
drivers/acpi/thermal.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/utils.c
浏览文件 @ d550d98d
此差异已折叠。
drivers/acpi/video.c
浏览文件 @ d550d98d
此差异已折叠。
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