dm mpath: fix test for reinstate_path
Fix test for reinstate_path method before attempting to use it.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Julia Lawall <julia@diku.dk>
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 230d789..fea966d 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -871,7 +871,7 @@
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;