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: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/drm_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 5d41af1..b07519e 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -247,7 +247,7 @@ 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;
/*
--
1.8.3.2
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