commit 6ff774bd472dcbe77df63ab8044cd9cf65535814
author Daniel Vetter <daniel.vetter@ffwll.ch> Thu Oct 15 09:36:26 2015 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> Mon Oct 19 11:00:43 2015 +0200
tree abd8af92611519654dff4066f9f8979f77dc0a59
parent ef4c6270bf2867e2f8032e9614d1a8cfc6c71663

drm/gem: Use container_of in drm_gem_object_free

Just a random thing I spotted while reading code - better safe than
sorry.

Link: http://mid.gmane.org/1444894601-5200-11-git-send-email-daniel.vetter@ffwll.ch
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

drivers/gpu/drm/drm_gem.c

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 7dc4a8a..ab8ea422 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -763,7 +763,8 @@
 void
 drm_gem_object_free(struct kref *kref)
 {
-	struct drm_gem_object *obj = (struct drm_gem_object *) kref;
+	struct drm_gem_object *obj =
+		container_of(kref, struct drm_gem_object, refcount);
 	struct drm_device *dev = obj->dev;
 
 	WARN_ON(!mutex_is_locked(&dev->struct_mutex));