mutex_lock(&dev->struct_mutex);
nouveau_bo_unpin(chan->notifier_bo);
mutex_unlock(&dev->struct_mutex);
+ drm_gem_object_handle_unreference_unlocked(chan->notifier_bo->gem);
drm_gem_object_unreference_unlocked(chan->notifier_bo->gem);
drm_mm_takedown(&chan->notifier_heap);
}