Author: Markus Elfring <elfring@users.sourceforge.net> 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 Acked-by: Jingoo Han Signed-off-by: Lee Jones — drivers/video/backlight/lp8788_bl.c | 3 +– 1 file changed, 1 insertion(+), 2 …