From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754368AbcAILa4 (ORCPT ); Sat, 9 Jan 2016 06:30:56 -0500 Received: from mail-yk0-f182.google.com ([209.85.160.182]:33847 "EHLO mail-yk0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753546AbcAILac (ORCPT ); Sat, 9 Jan 2016 06:30:32 -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, holt@sgi.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 06:30:23 -0500 Message-Id: <1452339024-3416-1-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