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Commit 1216f732 authored by Daniel Vetter's avatar Daniel Vetter Committed by Dave Airlie
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drm/gem: WARN about unbalanced handle refcounts 



Trying to drop a reference we don't have is a pretty serious bug.
Trying to paper over it is an even worse offense.

So scream into dmesg with a big WARN in case that ever happens.

Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 6bc505b8

drivers/gpu/drm/drm_gem.c

+1 −1
Original line number Diff line number Diff line
@@ -238,7 +238,7 @@ static void drm_gem_object_handle_free(struct drm_gem_object *obj) 
void

drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)

{

	if (atomic_read(&obj->handle_count) == 0)

	if (WARN_ON(atomic_read(&obj->handle_count) == 0))

		return;



	/*