From: majianpeng <majianpeng@gmail.com>
Date: Thu, 8 Nov 2012 00:56:27 +0000 (+0800)
Subject: md: Avoid write invalid address if read_seqretry returned true.
X-Git-Tag: v3.7-rc7~8^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=35f9ac2dcec8f79d7059ce174fd7b7ee3290d620;p=pandora-kernel.git

md: Avoid write invalid address if read_seqretry returned true.

If read_seqretry returned true and bbp was changed, it will write
invalid address which can cause some serious problem.

This bug was introduced by commit v3.0-rc7-130-g2699b67.
So fix is suitable for 3.0.y thru 3.6.y.

Reported-by: zhuwenfeng@kedacom.com
Tested-by: zhuwenfeng@kedacom.com
Cc: stable@vger.kernel.org
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

Reading git-diff-tree failed