X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=blobdiff_plain;f=drivers%2Finfiniband%2Fhw%2Fusnic%2Fusnic_ib_main.c;h=03f54eb9404b0aa60c81677b7119b15c9aabc296;hp=6ae5ce007fed6fe275fa8b3adfe9da13a3f1527b;hb=2a3c389a0fde49b241430df806a34276568cfb29;hpb=0b043644c0ca601cb19943a81aa1f1455dbe9461

diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
index 6ae5ce007fed..03f54eb9404b 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
@@ -429,11 +429,16 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
 	if (netif_carrier_ok(us_ibdev->netdev))
 		usnic_fwd_carrier_up(us_ibdev->ufdev);
 
-	ind = in_dev_get(netdev);
-	if (ind->ifa_list)
-		usnic_fwd_add_ipaddr(us_ibdev->ufdev,
-				     ind->ifa_list->ifa_address);
-	in_dev_put(ind);
+	rcu_read_lock();
+	ind = __in_dev_get_rcu(netdev);
+	if (ind) {
+		const struct in_ifaddr *ifa;
+
+		ifa = rcu_dereference(ind->ifa_list);
+		if (ifa)
+			usnic_fwd_add_ipaddr(us_ibdev->ufdev, ifa->ifa_address);
+	}
+	rcu_read_unlock();
 
 	usnic_mac_ip_to_gid(us_ibdev->netdev->perm_addr,
 				us_ibdev->ufdev->inaddr, &gid.raw[0]);