team: move dev_mc_sync after master_upper_dev_link in team_port_add

[ Upstream commit 982cf3b3999d39a2eaca0a65542df33c19b5d814 ]

The same fix as in 'bonding: move dev_mc_sync after master_upper_dev_link
in bond_enslave' is needed for team driver.

The panic can be reproduced easily:

  ip link add team1 type team
  ip link set team1 up
  ip link add link team1 vlan1 type vlan id 80
  ip link set vlan1 master team1

Fixes: cb41c997d444 ("team: team should sync the port's uc/mc addrs when add a port")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index a0a9c9d..8673ef3 100644 (file)
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1203,11 +1203,6 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
                goto err_dev_open;
        }
 
-       netif_addr_lock_bh(dev);
-       dev_uc_sync_multiple(port_dev, dev);
-       dev_mc_sync_multiple(port_dev, dev);
-       netif_addr_unlock_bh(dev);
-
        err = vlan_vids_add_by_dev(port_dev, dev);
        if (err) {
                netdev_err(dev, "Failed to add vlan ids to device %s\n",
@@ -1247,6 +1242,11 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
                goto err_option_port_add;
        }
 
+       netif_addr_lock_bh(dev);
+       dev_uc_sync_multiple(port_dev, dev);
+       dev_mc_sync_multiple(port_dev, dev);
+       netif_addr_unlock_bh(dev);
+
        port->index = -1;
        list_add_tail_rcu(&port->list, &team->port_list);
        team_port_enable(team, port);
@@ -1271,8 +1271,6 @@ err_enable_netpoll:
        vlan_vids_del_by_dev(port_dev, dev);
 
 err_vids_add:
-       dev_uc_unsync(port_dev, dev);
-       dev_mc_unsync(port_dev, dev);
        dev_close(port_dev);
 
 err_dev_open: