From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754160AbcGEATs (ORCPT ); Mon, 4 Jul 2016 20:19:48 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:52232 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753968AbcGEATq (ORCPT ); Mon, 4 Jul 2016 20:19:46 -0400 Date: Mon, 04 Jul 2016 17:19:45 -0700 (PDT) Message-Id: <20160704.171945.1411429111917733524.davem@davemloft.net> To: jasowang@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, sfr@canb.auug.org.au Subject: Re: [PATCH net-next] tun: fix build warnings From: David Miller In-Reply-To: <1467611618-4046-1-git-send-email-jasowang@redhat.com> References: <1467611618-4046-1-git-send-email-jasowang@redhat.com> X-Mailer: Mew version 6.7 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 04 Jul 2016 17:19:45 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Wang Date: Mon, 4 Jul 2016 13:53:38 +0800 > Stephen Rothwell reports a build warnings(powerpc ppc64_defconfig) > > drivers/net/tun.c: In function 'tun_do_read.part.5': > /home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be > used uninitialized in this function [-Wmaybe-uninitialized] > int err; > > This is because tun_ring_recv() may return an uninitialized err, fix this. > > Reported-by: Stephen Rothwell > Signed-off-by: Jason Wang Applied, thanks Jason.