dm mpath: fix check for null mpio in end_io fn
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Fri, 12 Oct 2012 15:59:42 +0000 (16:59 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Fri, 12 Oct 2012 15:59:42 +0000 (16:59 +0100)
commita71a261f5c39685698f7f1970dc7046b36e132d1
treeda8d0847828584d2788244d07c33a4422e489e50
parentce40be7a820bb393ac4ac69865f018d2f4038cf0
dm mpath: fix check for null mpio in end_io fn

The mpio dereference should be moved below the BUG_ON NULL test
in multipath_end_io().

spatch with a semantic match was used to found this.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm-mpath.c