1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 9f7302d4878d..fea966d66f98 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -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) {
@@ -623,8 +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;
@@ -867,7 +871,7 @@ static int reinstate_path(struct pgpath *pgpath)
         if (pgpath->path.is_active)
                 goto out;
 
-        if (!pgpath->pg->ps.type) {
+        if (!pgpath->pg->ps.type->reinstate_path) {
                 DMWARN("Reinstate path not supported by path selector %s",
                        pgpath->pg->ps.type->name);
                 r = -EINVAL;