From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 22 Jul 2013 06:55:15 +0000 (+0300)
Subject: btrfs/raid56: fix and cleanup some error paths
X-Git-Tag: v3.12-rc1~40^2~99
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3dc0e818afa25a605091b6a16c2c4e5698c0a9c2;p=pandora-kernel.git

btrfs/raid56: fix and cleanup some error paths

The alloc_rbio() frees "raid_map" and "bbio" on error, so there is a
potential double free bug in raid56_parity_write().  The
raid56_parity_write() and raid56_parity_recover() functions should still
free "raid_map" and "bbio" on error if other errors occur though, so I
have added some more calls to kfree().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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