Jul 05 2015

GPU-DRM: Delete an unnecessary check before drm_property_unreference_blob() 

Author: Markus Elfring <elfring@users.sourceforge.net>

The drm_property_unreference_blob() 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 
Reviewed-by: Zhao Junwang 
Signed-off-by: Daniel Vetter 

---
 drivers/gpu/drm/drm_crtc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
 
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b69ed97..79fe31e 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4469,9 +4469,7 @@ static int drm_property_replace_global_blob(struct drm_device *dev,
 			goto err_created;
 	}
 
-	if (old_blob)
-		drm_property_unreference_blob(old_blob);
-
+	drm_property_unreference_blob(old_blob);
 	*replace = new_blob;
 
 	return 0;

qlambert