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dm mpath: free path selector on invalid args

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Free path selector if the arguments are invalid.

This command (note that it is invalid) causes reference leak on module
"dm_round_robin" and prevents the module from being removed.

dmsetup create --table '0 2 multipath 0 0 1 1 round-robin /dev/sdh' mpath0

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mikulas Patocka 2008-07-21 12:00:24 +01:00 committed by Alasdair G Kergon
parent 5b664cb235
commit 371b2e348b
1 changed files with 3 additions and 1 deletions
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4
drivers/md/dm-mpath.c
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@ -525,8 +525,10 @@ static int parse_path_selector(struct arg_set *as, struct priority_group *pg,
}
r = read_param(_params, shift(as), &ps_argc, &ti->error);
if (r)
if (r) {
dm_put_path_selector(pst);
return -EINVAL;
}
r = pst->create(&pg->ps, ps_argc, as->argv);
if (r) {