From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754403AbcAILdp (ORCPT ); Sat, 9 Jan 2016 06:33:45 -0500 Received: from mail-yk0-f169.google.com ([209.85.160.169]:33664 "EHLO mail-yk0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753607AbcAILdo (ORCPT ); Sat, 9 Jan 2016 06:33:44 -0500 From: nimisolo To: akpm@linux-foundation.org, kuleshovmail@gmail.com, penberg@kernel.org, tony.luck@intel.com, mgorman@suse.de, tangchen@cn.fujitsu.com, weiyang@linux.vnet.ibm.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, nimisolo Subject: [PATCH] mm/memblock: If nr_new is 0 just return Date: Sat, 9 Jan 2016 06:33:40 -0500 Message-Id: <1452339220-3457-1-git-send-email-nimisolo@gmail.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If nr_new is 0 which means there's no region would be added, so just return to the caller. Signed-off-by: nimisolo --- mm/memblock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/memblock.c b/mm/memblock.c index d300f13..9a30077 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -588,6 +588,9 @@ repeat: nid, flags); } + if (!nr_new) + return 0; + /* * If this was the first round, resize array and repeat for actual * insertions; otherwise, merge and return. -- 2.5.0