bridge: Call vlan_vid_del for all vids at nbp_vlan_flush

We should call vlan_vid_del for all vids at nbp_vlan_flush to prevent
vid_info->refcount from being leaked when detaching a bridge port.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 57074be62fcb..af5ebd18d705 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -390,6 +390,7 @@ int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
 void nbp_vlan_flush(struct net_bridge_port *port)
 {
         struct net_port_vlans *pv;
+        u16 vid;
 
         ASSERT_RTNL();
 
@@ -397,6 +398,9 @@ void nbp_vlan_flush(struct net_bridge_port *port)
         if (!pv)
                 return;
 
+        for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID)
+                vlan_vid_del(port->dev, htons(ETH_P_8021Q), vid);
+
         __vlan_flush(pv);
 }