[PATCH 1/1] backlight: lp8788: Deletion of an unnecessary check before the function call "backlight_device_unregister"

SF Markus Elfring
2014-11-23T16:40:44Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 23 Nov 2014 17:33:08 +0100

The backlight_device_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/video/backlight/lp8788_bl.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index d6c4f6a..24a055c 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -221,8 +221,7 @@ static void lp8788_backlight_unregister(struct lp8788_bl *bl)
{
struct backlight_device *bl_dev = bl->bl_dev;

- if (bl_dev)
- backlight_device_unregister(bl_dev);
+ backlight_device_unregister(bl_dev);
}

static ssize_t lp8788_get_bl_ctl_mode(struct device *dev,
--
2.1.3