From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Tue, 28 Jan 2014 11:13:38 +0000 (+0800)
Subject: Btrfs: fix memory leaks on walking backrefs failure
X-Git-Tag: v3.14-rc1~29^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f05c474688762f186b16a26366755b6ef0bfed0c;p=pandora-kernel.git

Btrfs: fix memory leaks on walking backrefs failure

When walking backrefs, we may iterate every inode's extent
and add/merge them into ulist, and the caller will free memory
from ulist.

However, if we fail to allocate inode's extents element
memory or ulist_add() fail to allocate memory, we won't
add allocated memory into ulist, and the caller won't
free some allocated memory thus memory leaks happen.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

Reading git-diff-tree failed