diff options
Diffstat (limited to 'drivers/net/team/team.c')
| -rw-r--r-- | drivers/net/team/team.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 267a90423154..7b3ef6dc45a4 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1136,6 +1136,12 @@ static int team_port_add(struct team *team, struct net_device *port_dev) return -EINVAL; } + if (netdev_has_upper_dev(dev, port_dev)) { + netdev_err(dev, "Device %s is already an upper device of the team interface\n", + portname); + return -EBUSY; + } + if (port_dev->features & NETIF_F_VLAN_CHALLENGED && vlan_uses_dev(dev)) { netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", |