memcg: memory hotplug fix for notifier callback

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index 7ad489af95614602a2f5fec8756460108a1f6be1..749588a50a5ac2764eb49cf944d8bf784eedfb5f 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2931,8 +2931,10 @@ static int slab_memory_callback(struct notifier_block *self,
        case MEM_CANCEL_OFFLINE:
                break;
        }
-
-       ret = notifier_from_errno(ret);
+       if (ret)
+               ret = notifier_from_errno(ret);
+       else
+               ret = NOTIFY_OK;
        return ret;
 }