Author: Markus Elfring <elfring@users.sourceforge.net> The drm_gem_object_unreference_unlocked() 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 — drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 8 ++—— 1 file changed, 2 insertions(+), 6 deletions(-) diff –git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c …