diff options
Diffstat (limited to 'net/bridge/br_device.c')
| -rw-r--r-- | net/bridge/br_device.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 434effde02c3..fb38add21b37 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -245,6 +245,12 @@ static int br_set_mac_address(struct net_device *dev, void *p) if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; + /* dev_set_mac_addr() can be called by a master device on bridge's + * NETDEV_UNREGISTER, but since it's being destroyed do nothing + */ + if (dev->reg_state != NETREG_REGISTERED) + return -EBUSY; + spin_lock_bh(&br->lock); if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) { /* Mac address will be changed in br_stp_change_bridge_id(). */ |