These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / drm / drm_gem.h

diff --git a/kernel/include/drm/drm_gem.h b/kernel/include/drm/drm_gem.h
index 7a592d7..15e7f00 100644 (file)
--- a/kernel/include/drm/drm_gem.h
+++ b/kernel/include/drm/drm_gem.h
@@ -142,8 +142,11 @@ drm_gem_object_reference(struct drm_gem_object *obj)
 static inline void
 drm_gem_object_unreference(struct drm_gem_object *obj)
 {
-       if (obj != NULL)
+       if (obj != NULL) {
+               WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
+
                kref_put(&obj->refcount, drm_gem_object_free);
+       }
 }
 
 static inline void