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veth: Fix unregister_netdevice_queue for veth

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I tested the recent unregister many changes and got a weird,
nasty and seemingly unrelasted kernel oops. Changing
unregister_netdevice_queue to use list_move_tail fixes
the problem for me.

ip link add type veth
rmmod veth

ls /sys/class/net/
showed one of the veth devices still present.

A subsequent ip link oopsed the box.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2009-10-30 14:51:13 +00:00 committed by David S. Miller
parent 72c9528bab
commit 9fdce099bb
1 changed files with 2 additions and 1 deletions
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3
net/core/dev.c
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@ -5258,6 +5258,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
netdev_init_queues(dev);
INIT_LIST_HEAD(&dev->napi_list);
INIT_LIST_HEAD(&dev->unreg_list);
dev->priv_flags = IFF_XMIT_DST_RELEASE;
setup(dev);
strcpy(dev->name, name);
@ -5339,7 +5340,7 @@ void unregister_netdevice_queue(struct net_device *dev, struct list_head *head)
ASSERT_RTNL();
if (head) {
list_add_tail(&dev->unreg_list, head);
list_move_tail(&dev->unreg_list, head);
} else {
rollback_registered(dev);
/* Finish processing unregister after unlock */