[SCSI] libsas: do not set res = 0 in sas_ex_discover_dev()

We should not set res to 0 in function sas_ex_discover_dev  in order to let
it discover it further when wide port hotplug in .

Signed-off-by: Tom Peng <tom_peng@usish.com>
Signed-off-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index b3381959acce..33cf988c8c8a 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -960,7 +960,6 @@ static int sas_ex_discover_dev(struct domain_device *dev, int phy_id)
 
                         }
                 }
-                res = 0;
         }
 
         return res;