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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 4534DC433E1 for ; Thu, 20 Aug 2020 12:24:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14FEE20738 for ; Thu, 20 Aug 2020 12:24:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597926287; bh=ng2dWQPIygJnSwEabXZLLCmhiuRhUXoVKVZys+erk0A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D7GwSdOYj0Bp06Payandopl4tLsy6vu7GYGNEakvP83evQMapH3NAjFSbDS517HWU 8t0dXpAQk4fh7l4pO/8uL3FTnn8mXFUyH16japebK+UCQyBsdULv+3jkmB03CKTMoR JonIEtozbMp0D09dNo0rGMe3xdt9pg/nATmk4dD8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730213AbgHTMYo (ORCPT ); Thu, 20 Aug 2020 08:24:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:35826 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730071AbgHTJxo (ORCPT ); Thu, 20 Aug 2020 05:53:44 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DAF0821775; Thu, 20 Aug 2020 09:53:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597917224; bh=ng2dWQPIygJnSwEabXZLLCmhiuRhUXoVKVZys+erk0A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EUVejZn/cAiveBWTpASi2nk6sFV7RMmEVlhpVuasLyXX7Iv2BdAhuuxkCaEGJX+eO QSFx3Cwo/4OCBXwaa0GmkXeW+EHfCLzxFlaviOK0Bd86GxJu6yDIu8IqBWeo7tNCvg fNpMTSzLzlkApPdzrLfdpFGDBowhDADqj16Wdbo4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nikolay Borisov , "Pavel Machek (CIP)" , David Sterba Subject: [PATCH 4.19 17/92] btrfs: fix return value mixup in btrfs_get_extent Date: Thu, 20 Aug 2020 11:21:02 +0200 Message-Id: <20200820091538.452622277@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820091537.490965042@linuxfoundation.org> References: <20200820091537.490965042@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pavel Machek commit 881a3a11c2b858fe9b69ef79ac5ee9978a266dc9 upstream. btrfs_get_extent() sets variable ret, but out: error path expect error to be in variable err so the error code is lost. Fixes: 6bf9e4bd6a27 ("btrfs: inode: Verify inode mode to avoid NULL pointer dereference") CC: stable@vger.kernel.org # 5.4+ Reviewed-by: Nikolay Borisov Signed-off-by: Pavel Machek (CIP) Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7014,7 +7014,7 @@ struct extent_map *btrfs_get_extent(stru found_type == BTRFS_FILE_EXTENT_PREALLOC) { /* Only regular file could have regular/prealloc extent */ if (!S_ISREG(inode->vfs_inode.i_mode)) { - ret = -EUCLEAN; + err = -EUCLEAN; btrfs_crit(fs_info, "regular/prealloc extent found for non-regular inode %llu", btrfs_ino(inode));