diff --git a/[refs] b/[refs]
index 8fd25a44cf74..a6f2b7bb6229 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0ad9500e16fe24aa55809a2b00e0d2d0e658fc71
+refs/heads/master: 66c4c35c6bc5a1a452b024cf0364635b28fd94e4
diff --git a/trunk/mm/slub.c b/trunk/mm/slub.c
index 5b915e86a9b0..bc7a8af24f16 100644
--- a/trunk/mm/slub.c
+++ b/trunk/mm/slub.c
@@ -3937,13 +3937,14 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
 		if (kmem_cache_open(s, n,
 				size, align, flags, ctor)) {
 			list_add(&s->list, &slab_caches);
+			up_write(&slub_lock);
 			if (sysfs_slab_add(s)) {
+				down_write(&slub_lock);
 				list_del(&s->list);
 				kfree(n);
 				kfree(s);
 				goto err;
 			}
-			up_write(&slub_lock);
 			return s;
 		}
 		kfree(n);