mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init().
Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Zheng Yongjun zhengyongjun3@huawei.com --- drivers/video/backlight/backlight.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 537fe1b376ad..d7a09c422547 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -64,7 +64,7 @@ */
static struct list_head backlight_dev_list; -static struct mutex backlight_dev_list_mutex; +static DEFINE_MUTEX(backlight_dev_list_mutex); static struct blocking_notifier_head backlight_notifier;
static const char *const backlight_types[] = { @@ -757,7 +757,6 @@ static int __init backlight_class_init(void) backlight_class->dev_groups = bl_device_groups; backlight_class->pm = &backlight_class_dev_pm_ops; INIT_LIST_HEAD(&backlight_dev_list); - mutex_init(&backlight_dev_list_mutex); BLOCKING_INIT_NOTIFIER_HEAD(&backlight_notifier);
return 0;