From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751785AbdIQQxP convert rfc822-to-8bit (ORCPT ); Sun, 17 Sep 2017 12:53:15 -0400 Received: from mail.sigma-star.at ([95.130.255.111]:45996 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751548AbdIQQxO (ORCPT ); Sun, 17 Sep 2017 12:53:14 -0400 From: Richard Weinberger To: Geert Uytterhoeven Cc: Artem Bityutskiy , Adrian Hunter , Hyunchul Lee , Colin Ian King , Dan Carpenter , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ubifs: Fix uninitialized variable in search_dh_cookie() Date: Sun, 17 Sep 2017 18:53:28 +0200 Message-ID: <3629896.LZWARU6us7@blindfold> In-Reply-To: <1505637141-4700-1-git-send-email-geert@linux-m68k.org> References: <1505637141-4700-1-git-send-email-geert@linux-m68k.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Sonntag, 17. September 2017, 10:32:20 CEST schrieb Geert Uytterhoeven: > fs/ubifs/tnc.c: In function ‘search_dh_cookie’: > fs/ubifs/tnc.c:1893: warning: ‘err’ is used uninitialized in this function > > Indeed, err is always used uninitialized. > > According to an original review comment from Hyunchul, acknowledged by > Richard, err should be initialized to -ENOENT to avoid the first call to > tnc_next(). But we can achieve the same by reordering the code. > > Reported-by: Hyunchul Lee > Signed-off-by: Geert Uytterhoeven > --- > Compile-tested only. > > Still needed in v4.14-rc1, so I'm sending out the patch I wrote in July. > This avoids initializing err at the top, so we don't loose the ability to > catch future uninitialized use. Geez. ;-\ Applied for 4.14-rc2. Thanks, //richard