diff --git a/[refs] b/[refs]
index 112df9d639c3..3f710336693d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ecf7ace9a8450303a987aa8364e53860cd50e554
+refs/heads/master: 2357cbe5f4ca8a52329c2c2a26b68839870d5d43
diff --git a/trunk/drivers/gpu/drm/ttm/ttm_bo.c b/trunk/drivers/gpu/drm/ttm/ttm_bo.c
index a586378b1b2b..9ef893d5da88 100644
--- a/trunk/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/trunk/drivers/gpu/drm/ttm/ttm_bo.c
@@ -266,10 +266,8 @@ static void ttm_bo_ref_bug(struct kref *list_kref)
 void ttm_bo_list_ref_sub(struct ttm_buffer_object *bo, int count,
 			 bool never_free)
 {
-	while (count--)
-		kref_put(&bo->list_kref,
-			 (never_free || (count >= 0)) ? ttm_bo_ref_bug :
-			 ttm_bo_release_list);
+	kref_sub(&bo->list_kref, count,
+		 (never_free) ? ttm_bo_ref_bug : ttm_bo_release_list);
 }
 
 int ttm_bo_reserve(struct ttm_buffer_object *bo,