commit 35f9ac2dcec8f79d7059ce174fd7b7ee3290d620
author majianpeng <majianpeng@gmail.com> Thu Nov 08 08:56:27 2012 +0800
committer NeilBrown <neilb@suse.de> Tue Nov 20 10:27:17 2012 +1100
tree 0192c0d2874221bf8672e278c86fd0239cb32b08
parent ab05613a0646dcc11049692d54bae76ca9ffa910

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>