diff options
| -rw-r--r-- | drivers/net/net_failover.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c index 192ae1cd17f0..8524fe4fddea 100644 --- a/drivers/net/net_failover.c +++ b/drivers/net/net_failover.c @@ -602,6 +602,9 @@ static int net_failover_slave_unregister(struct net_device *slave_dev, primary_dev = rtnl_dereference(nfo_info->primary_dev); standby_dev = rtnl_dereference(nfo_info->standby_dev); + if (WARN_ON_ONCE(slave_dev != primary_dev && slave_dev != standby_dev)) + return -ENODEV; + vlan_vids_del_by_dev(slave_dev, failover_dev); dev_uc_unsync(slave_dev, failover_dev); dev_mc_unsync(slave_dev, failover_dev); |