From: NeilBrown <neilb@suse.de>
Date: Tue, 31 Mar 2009 03:39:39 +0000 (+1100)
Subject: md: md_unregister_thread should cope with being passed NULL
X-Git-Tag: v2.6.30-rc1~241^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0cf8f045b2023b0b3f919ee93eb94345f648434;p=pandora-kernel.git

md: md_unregister_thread should cope with being passed NULL

Mostly md_unregister_thread is only called when we know that the
thread is NULL, but sometimes we need to check first.  It is safer
to put the check inside md_unregister_thread itself.

Signed-off-by: NeilBrown <neilb@suse.de>
---

Reading git-diff-tree failed