From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43C77C433E0 for ; Wed, 24 Jun 2020 08:49:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 272BF20B80 for ; Wed, 24 Jun 2020 08:49:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389141AbgFXItb (ORCPT ); Wed, 24 Jun 2020 04:49:31 -0400 Received: from cmccmta3.chinamobile.com ([221.176.66.81]:5596 "EHLO cmccmta3.chinamobile.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388830AbgFXItZ (ORCPT ); Wed, 24 Jun 2020 04:49:25 -0400 Received: from spf.mail.chinamobile.com (unknown[172.16.121.1]) by rmmx-syy-dmz-app12-12012 (RichMail) with SMTP id 2eec5ef31384808-51d08; Wed, 24 Jun 2020 16:49:08 +0800 (CST) X-RM-TRANSID: 2eec5ef31384808-51d08 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from localhost.localdomain (unknown[223.105.0.242]) by rmsmtp-syy-appsvr01-12001 (RichMail) with SMTP id 2ee15ef31383538-2ae1e; Wed, 24 Jun 2020 16:49:08 +0800 (CST) X-RM-TRANSID: 2ee15ef31383538-2ae1e From: Ding Xiang To: axboe@kernel.dk Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] loop: fix passing zero to 'PTR_ERR' warning Date: Wed, 24 Jun 2020 16:48:42 +0800 Message-Id: <1592988522-4350-1-git-send-email-dingxiang@cmss.chinamobile.com> X-Mailer: git-send-email 2.7.4 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Fix a static code checker warning: drivers/block/loop.c:798 loop_attr_backing_file_show() warn: passing zero to 'PTR_ERR' Signed-off-by: Ding Xiang --- drivers/block/loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 475e1a7..bcada87 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -795,7 +795,7 @@ static ssize_t loop_attr_backing_file_show(struct loop_device *lo, char *buf) spin_unlock_irq(&lo->lo_lock); if (IS_ERR_OR_NULL(p)) - ret = PTR_ERR(p); + ret = PTR_ERR_OR_ZERO(p); else { ret = strlen(p); memmove(buf, p, ret); -- 2.7.4