batman-adv: Clean up untagged vlan when destroying via rtnl-link

The untagged vlan object is only destroyed when the interface is removed
via the legacy sysfs interface. But it also has to be destroyed when the
standard rtnl-link interface is used.

Fixes: 5d2c05b21337 ("batman-adv: add per VLAN interface attribute framework")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 343d2c9..287a387 100644 (file)
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -1033,7 +1033,9 @@ void batadv_softif_destroy_sysfs(struct net_device *soft_iface)
 static void batadv_softif_destroy_netlink(struct net_device *soft_iface,
                                          struct list_head *head)
 {
+       struct batadv_priv *bat_priv = netdev_priv(soft_iface);
        struct batadv_hard_iface *hard_iface;
+       struct batadv_softif_vlan *vlan;
 
        list_for_each_entry(hard_iface, &batadv_hardif_list, list) {
                if (hard_iface->soft_iface == soft_iface)
@@ -1041,6 +1043,13 @@ static void batadv_softif_destroy_netlink(struct net_device *soft_iface,
                                                        BATADV_IF_CLEANUP_KEEP);
        }
 
+       /* destroy the "untagged" VLAN */
+       vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
+       if (vlan) {
+               batadv_softif_destroy_vlan(bat_priv, vlan);
+               batadv_softif_vlan_put(vlan);
+       }
+
        batadv_sysfs_del_meshif(soft_iface);
        unregister_netdevice_queue(soft_iface, head);
 }