diff options
| author | Elad Raz <eladr@mellanox.com> | 2016-01-06 13:01:04 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-06 20:42:40 +0100 |
| commit | 08474cc1e6ea71237cab7e4a651a623c9dea1084 (patch) | |
| tree | f2e0b8924e821aaaf830fc7bc5deb420813bd981 /net/bridge | |
| parent | soreuseport: change consume_skb to kfree_skb in error case (diff) | |
| download | linux-08474cc1e6ea71237cab7e4a651a623c9dea1084.tar.xz linux-08474cc1e6ea71237cab7e4a651a623c9dea1084.zip | |
bridge: Propagate vlan add failure to user
Disallow adding interfaces to a bridge when vlan filtering operation
failed. Send the failure code to the user.
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_if.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 8d1d4a22c50d..c367b3e1b5ac 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -511,8 +511,11 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) if (br_fdb_insert(br, p, dev->dev_addr, 0)) netdev_err(dev, "failed insert local address bridge forwarding table\n"); - if (nbp_vlan_init(p)) + err = nbp_vlan_init(p); + if (err) { netdev_err(dev, "failed to initialize vlan filtering on this port\n"); + goto err6; + } spin_lock_bh(&br->lock); changed_addr = br_stp_recalculate_bridge_id(br); @@ -533,6 +536,12 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) return 0; +err6: + list_del_rcu(&p->list); + br_fdb_delete_by_port(br, p, 0, 1); + nbp_update_port_count(br); + netdev_upper_dev_unlink(dev, br->dev); + err5: dev->priv_flags &= ~IFF_BRIDGE_PORT; netdev_rx_handler_unregister(dev); |