From: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Most places that use asd_sas_port->phy_list in libsas are protected by
spinlock asd_sas_port->phy_list_lock, but there are still some places
which lack of it. So add it in those places.
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Reviewed-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/scsi/libsas/sas_event.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c
index f703115e7a25..af605620ea13 100644
--- a/drivers/scsi/libsas/sas_event.c
+++ b/drivers/scsi/libsas/sas_event.c
@@ -104,11 +104,15 @@ void sas_enable_revalidation(struct sas_ha_struct *ha)
if (!test_and_clear_bit(ev, &d->pending))
continue;
- if (list_empty(&port->phy_list))
+ spin_lock(&port->phy_list_lock);
+ if (list_empty(&port->phy_list)) {
+ spin_unlock(&port->phy_list_lock);
continue;
+ }
sas_phy = container_of(port->phy_list.next, struct asd_sas_phy,
port_phy_el);
+ spin_unlock(&port->phy_list_lock);
sas_notify_port_event(sas_phy,
PORTE_BROADCAST_RCVD, GFP_KERNEL);
}
--
2.33.0
