drm/ttm: drop the spin in delayed delete if the trylock doesn't work

Thomas actually noticed that, but I didn't realized what he meant until
now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 60bb5c1..84dfa23 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -592,6 +592,8 @@ static bool ttm_bo_delayed_delete(struct ttm_bo_device *bdev, bool remove_all)
 
                } else if (reservation_object_trylock(bo->resv)) {
                        ttm_bo_cleanup_refs(bo, false, !remove_all, true);
+               } else {
+                       spin_unlock(&glob->lru_lock);
                }
 
                kref_put(&bo->list_kref, ttm_bo_release_list);