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 Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/791089e4-201c-ad01-9c3b-f49835765177@users.sourceforge.net — drivers/gpu/drm/bridge/parade-ps8622.c | 4 +— 1 file changed, 1 insertion(+), 3 deletions(-) …