drm/ttm: consistently use reservation_object_unlock

Instead of having a confusing wrapper or call the underlying ww_mutex
function directly.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index a6da6fa..f27777d 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -468,7 +468,7 @@ void qxl_release_fence_buffer_objects(struct qxl_release *release)
 
 		reservation_object_add_shared_fence(bo->resv, &release->base);
 		ttm_bo_add_to_lru(bo);
-		__ttm_bo_unreserve(bo);
+		reservation_object_unlock(bo->resv);
 	}
 	spin_unlock(&glob->lru_lock);
 	ww_acquire_fini(&release->ticket);