提交 4a1b0714 编写于 作者: L Laurent Pinchart 提交者: Dave Airlie

drm: Don't initialize local ret variable when not needed

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
上级 7eb3b2c8
......@@ -1829,7 +1829,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
struct drm_display_mode *mode = NULL;
struct drm_mode_set set;
uint32_t __user *set_connectors_ptr;
int ret = 0;
int ret;
int i;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
......@@ -2248,7 +2248,7 @@ int drm_mode_addfb2(struct drm_device *dev,
struct drm_mode_fb_cmd2 *r = data;
struct drm_mode_config *config = &dev->mode_config;
struct drm_framebuffer *fb;
int ret = 0;
int ret;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
......@@ -2403,7 +2403,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
struct drm_framebuffer *fb;
unsigned flags;
int num_clips;
int ret = 0;
int ret;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
......@@ -2602,7 +2602,7 @@ int drm_mode_attachmode_ioctl(struct drm_device *dev,
struct drm_display_mode *mode;
struct drm_mode_object *obj;
struct drm_mode_modeinfo *umode = &mode_cmd->mode;
int ret = 0;
int ret;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
......@@ -2656,7 +2656,7 @@ int drm_mode_detachmode_ioctl(struct drm_device *dev,
struct drm_connector *connector;
struct drm_display_mode mode;
struct drm_mode_modeinfo *umode = &mode_cmd->mode;
int ret = 0;
int ret;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
......@@ -3065,7 +3065,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
struct edid *edid)
{
struct drm_device *dev = connector->dev;
int ret = 0, size;
int ret, size;
if (connector->edid_blob_ptr)
drm_property_destroy_blob(dev, connector->edid_blob_ptr);
......
......@@ -518,7 +518,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
int count = 0, ro, fail = 0;
struct drm_crtc_helper_funcs *crtc_funcs;
struct drm_mode_set save_set;
int ret = 0;
int ret;
int i;
DRM_DEBUG_KMS("\n");
......
......@@ -220,18 +220,18 @@ int drm_load_edid_firmware(struct drm_connector *connector)
{
char *connector_name = drm_get_connector_name(connector);
char *edidname = edid_firmware, *last, *colon;
int ret = 0;
int ret;
if (*edidname == '\0')
return ret;
return 0;
colon = strchr(edidname, ':');
if (colon != NULL) {
if (strncmp(connector_name, edidname, colon - edidname))
return ret;
return 0;
edidname = colon + 1;
if (*edidname == '\0')
return ret;
return 0;
}
last = edidname + strlen(edidname) - 1;
......
......@@ -383,7 +383,6 @@ int drm_fb_helper_init(struct drm_device *dev,
int crtc_count, int max_conn_count)
{
struct drm_crtc *crtc;
int ret = 0;
int i;
fb_helper->dev = dev;
......@@ -408,10 +407,8 @@ int drm_fb_helper_init(struct drm_device *dev,
sizeof(struct drm_connector *),
GFP_KERNEL);
if (!fb_helper->crtc_info[i].mode_set.connectors) {
ret = -ENOMEM;
if (!fb_helper->crtc_info[i].mode_set.connectors)
goto out_free;
}
fb_helper->crtc_info[i].mode_set.num_connectors = 0;
}
......
......@@ -328,7 +328,7 @@ drm_gem_create_mmap_offset(struct drm_gem_object *obj)
struct drm_gem_mm *mm = dev->mm_private;
struct drm_map_list *list;
struct drm_local_map *map;
int ret = 0;
int ret;
/* Set the object up for mmap'ing */
list = &obj->map_list;
......
......@@ -310,7 +310,7 @@ static void drm_irq_vgaarb_nokms(void *cookie, bool state)
*/
int drm_irq_install(struct drm_device *dev)
{
int ret = 0;
int ret;
unsigned long sh_flags = 0;
char *irqname;
......@@ -731,7 +731,7 @@ EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos);
u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
struct timeval *tvblank, unsigned flags)
{
int ret = 0;
int ret;
/* Define requested maximum error on timestamps (nanoseconds). */
int max_error = (int) drm_timestamp_precision * 1000;
......@@ -1031,18 +1031,15 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_modeset_ctl *modeset = data;
int ret = 0;
unsigned int crtc;
/* If drm_vblank_init() hasn't been called yet, just no-op */
if (!dev->num_crtcs)
goto out;
return 0;
crtc = modeset->crtc;
if (crtc >= dev->num_crtcs) {
ret = -EINVAL;
goto out;
}
if (crtc >= dev->num_crtcs)
return -EINVAL;
switch (modeset->cmd) {
case _DRM_PRE_MODESET:
......@@ -1052,12 +1049,10 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
drm_vblank_post_modeset(dev, crtc);
break;
default:
ret = -EINVAL;
break;
return -EINVAL;
}
out:
return ret;
return 0;
}
static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
......@@ -1154,7 +1149,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
union drm_wait_vblank *vblwait = data;
int ret = 0;
int ret;
unsigned int flags, seq, crtc, high_crtc;
if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
......
......@@ -331,7 +331,7 @@ static int drm_notifier(void *priv)
void drm_idlelock_take(struct drm_lock_data *lock_data)
{
int ret = 0;
int ret;
spin_lock_bh(&lock_data->spinlock);
lock_data->kernel_waiters++;
......
......@@ -210,7 +210,7 @@ EXPORT_SYMBOL(drm_master_put);
int drm_setmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
int ret = 0;
int ret;
if (file_priv->is_master)
return 0;
......
......@@ -366,7 +366,7 @@ int drm_sysfs_connector_add(struct drm_connector *connector)
int attr_cnt = 0;
int opt_cnt = 0;
int i;
int ret = 0;
int ret;
/* We shouldn't get called more than once for the same connector */
BUG_ON(device_is_registered(&connector->kdev));
......
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