Commit d9351561 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

macvlan: fix panic if lowerdev in a bond

commit a35e2c1b (macvlan: use rx_handler_data pointer to store
macvlan_port pointer V2) added a bug in macvlan_port_create()

Steps to reproduce the bug:

# ifenslave bond0 eth0 eth1

# ip link add link eth0 up name eth0#1 type macvlan
->error EBUSY

# ip link add link eth0 up name eth0#1 type macvlan
->panic


Fix: Dont set IFF_MACVLAN_PORT in error case.
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7196cd6c
...@@ -585,7 +585,7 @@ static int macvlan_port_create(struct net_device *dev) ...@@ -585,7 +585,7 @@ static int macvlan_port_create(struct net_device *dev)
err = netdev_rx_handler_register(dev, macvlan_handle_frame, port); err = netdev_rx_handler_register(dev, macvlan_handle_frame, port);
if (err) if (err)
kfree(port); kfree(port);
else
dev->priv_flags |= IFF_MACVLAN_PORT; dev->priv_flags |= IFF_MACVLAN_PORT;
return err; return err;
} }
......
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