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authorMikulas Patocka <mpatocka@redhat.com>2008-07-21 12:00:30 +0100
committerAlasdair G Kergon <agk@redhat.com>2008-07-21 12:00:30 +0100
commit148acff615b403168cdf39e55bfcfaa6e4a7d233 (patch)
treee9879aecb1403f89ec1a6d37d2608dd9bf51e2ef /drivers/md
parent6ae2fa6718c398290be29ef740873640d25058b6 (diff)
downloadlinux-148acff615b403168cdf39e55bfcfaa6e4a7d233.tar.bz2
dm mpath: return parameter error
Return a specific error message if there are an invalid number of multipath arguments. This invalid command returns an "Unknown error" because the ti->error field is not set dmsetup create --table '0 2 multipath 0 0 1 1 round-robin 0 1 1 /dev/sdh' mpath0 Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-mpath.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 9f570b2ab7b4..230d7890ec8a 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -625,8 +625,10 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
struct pgpath *pgpath;
struct arg_set path_args;
- if (as->argc < nr_params)
+ if (as->argc < nr_params) {
+ ti->error = "not enough path parameters";
goto bad;
+ }
path_args.argc = nr_params;
path_args.argv = as->argv;