From 6bbf79a14080a0c61212f53b4b87dc1a99fedf9c Mon Sep 17 00:00:00 2001
From: Alasdair G Kergon <agk@redhat.com>
Date: Thu, 12 Aug 2010 04:13:49 +0100
Subject: [PATCH] dm mpath: fix NULL pointer dereference when path parameters
missing
multipath_ctr() forgets to return an error after detecting
missing path parameters. Fix this.
Signed-off-by: Patrick LoPresti <lopresti@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm-mpath.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 826bce7343b369..da2223aa727f86 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -706,6 +706,7 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
if (as->argc < nr_params) {
ti->error = "not enough path parameters";
+ r = -EINVAL;
goto bad;
}
--
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