提交 5b4ce882 编写于 作者: T Tomas Henzl 提交者: Christoph Hellwig

pm8001: more fixes to honor return value

The driver ignores the return value in a lot of places, fix
it at least somewhere (and release the resources in such cases),
to avoid that bad things happen.
A memory leak is fixed too.
Signed-off-by: NTomas Henzl <thenzl@redhat.com>
Acked-by: NSuresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: NJack Wang <xjtuwjp@gmail.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
上级 646cdf00
......@@ -397,7 +397,10 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
payload.func_specific = kzalloc(4096, GFP_KERNEL);
if (!payload.func_specific)
return -ENOMEM;
PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
kfree(payload.func_specific);
return -ENOMEM;
}
wait_for_completion(&completion);
virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
......
......@@ -622,6 +622,8 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
DECLARE_COMPLETION_ONSTACK(completion);
struct pm8001_ioctl_payload payload;
u16 deviceid;
int rc;
pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
pm8001_ha->nvmd_completion = &completion;
......@@ -639,7 +641,16 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
}
payload.offset = 0;
payload.func_specific = kzalloc(payload.length, GFP_KERNEL);
PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
if (!payload.func_specific) {
PM8001_INIT_DBG(pm8001_ha, pm8001_printk("mem alloc fail\n"));
return;
}
rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
if (rc) {
kfree(payload.func_specific);
PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
return;
}
wait_for_completion(&completion);
for (i = 0, j = 0; i <= 7; i++, j++) {
......@@ -662,6 +673,7 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
pm8001_printk("phy %d sas_addr = %016llx\n", i,
pm8001_ha->phy[i].dev_sas_addr));
}
kfree(payload.func_specific);
#else
for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
......@@ -685,6 +697,7 @@ static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
/*OPTION ROM FLASH read for the SPC cards */
DECLARE_COMPLETION_ONSTACK(completion);
struct pm8001_ioctl_payload payload;
int rc;
pm8001_ha->nvmd_completion = &completion;
/* SAS ADDRESS read from flash / EEPROM */
......@@ -695,7 +708,12 @@ static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
if (!payload.func_specific)
return -ENOMEM;
/* Read phy setting values from flash */
PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
if (rc) {
kfree(payload.func_specific);
PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
return -ENOMEM;
}
wait_for_completion(&completion);
pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
kfree(payload.func_specific);
......
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