Pretty soon only some drivers will need dev->struct_mutex in their
gem_free_object callbacks. Hence it's really important to make sure
everything still keeps getting this right.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
include/drm/drm_gem.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 7a592d7e398b..5b3754864fb0 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -142,6 +142,8 @@ drm_gem_object_reference(struct drm_gem_object *obj)
static inline void
drm_gem_object_unreference(struct drm_gem_object *obj)
{
+ WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
+
if (obj != NULL)
kref_put(&obj->refcount, drm_gem_object_free);
}
--
2.5.1
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