Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757830AbaJCWNr (ORCPT ); Fri, 3 Oct 2014 18:13:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:46729 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757758AbaJCWNj (ORCPT ); Fri, 3 Oct 2014 18:13:39 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Theodore Tso Subject: [PATCH 3.16 353/357] ext4: avoid trying to kfree an ERR_PTR pointer Date: Fri, 3 Oct 2014 14:32:19 -0700 Message-Id: <20141003212944.061183410@linuxfoundation.org> X-Mailer: git-send-email 2.1.2 In-Reply-To: <20141003212933.458851516@linuxfoundation.org> References: <20141003212933.458851516@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Theodore Ts'o commit a9cfcd63e8d206ce4235c355d857c4fbdf0f4587 upstream. Thanks to Dan Carpenter for extending smatch to find bugs like this. (This was found using a development version of smatch.) Fixes: 36de928641ee48b2078d3fe9514242aaa2f92013 Reported-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- fs/ext4/namei.c | 2 ++ fs/ext4/resize.c | 2 ++ 2 files changed, 4 insertions(+) --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3240,6 +3240,7 @@ static int ext4_rename(struct inode *old &new.de, &new.inlined); if (IS_ERR(new.bh)) { retval = PTR_ERR(new.bh); + new.bh = NULL; goto end_rename; } if (new.bh) { @@ -3386,6 +3387,7 @@ static int ext4_cross_rename(struct inod &new.de, &new.inlined); if (IS_ERR(new.bh)) { retval = PTR_ERR(new.bh); + new.bh = NULL; goto end_rename; } --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -575,6 +575,7 @@ handle_bb: bh = bclean(handle, sb, block); if (IS_ERR(bh)) { err = PTR_ERR(bh); + bh = NULL; goto out; } overhead = ext4_group_overhead_blocks(sb, group); @@ -603,6 +604,7 @@ handle_ib: bh = bclean(handle, sb, block); if (IS_ERR(bh)) { err = PTR_ERR(bh); + bh = NULL; goto out; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/