diff options
Diffstat (limited to 'drivers/video/nvidia/nv_backlight.c')
| -rw-r--r-- | drivers/video/nvidia/nv_backlight.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c index 14c37c42191..5b75ae4e945 100644 --- a/drivers/video/nvidia/nv_backlight.c +++ b/drivers/video/nvidia/nv_backlight.c @@ -112,13 +112,15 @@ static struct backlight_properties nvidia_bl_data = { void nvidia_bl_set_power(struct fb_info *info, int power) { - if (info->bl_dev == NULL) - return; mutex_lock(&info->bl_mutex); - up(&info->bl_dev->sem); - info->bl_dev->props->power = power; - __nvidia_bl_update_status(info->bl_dev); - down(&info->bl_dev->sem); + + if (info->bl_dev) { + down(&info->bl_dev->sem); + info->bl_dev->props->power = power; + __nvidia_bl_update_status(info->bl_dev); + up(&info->bl_dev->sem); + } + mutex_unlock(&info->bl_mutex); } @@ -153,11 +155,11 @@ void nvidia_bl_init(struct nvidia_par *par) 0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL); mutex_unlock(&info->bl_mutex); - up(&bd->sem); + down(&bd->sem); bd->props->brightness = nvidia_bl_data.max_brightness; bd->props->power = FB_BLANK_UNBLANK; bd->props->update_status(bd); - down(&bd->sem); + up(&bd->sem); #ifdef CONFIG_PMAC_BACKLIGHT mutex_lock(&pmac_backlight_mutex); |