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WAN: HDLC: Detach protocol before unregistering device

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The current code first unregisters the device, and then detaches the
protocol from it. This should be performed the other way around, since
the detach may try to use state which has been freed by the
unregister. Swap the order, so that we first detach and then remove the
netdev.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2015-12-03 21:12:30 +01:00 • committed by David S. Miller
parent 2141eaf0e8
commit ff35164427
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wan/hdlc.c
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@ -266,8 +266,8 @@ struct net_device *alloc_hdlcdev(void *priv)
void unregister_hdlc_device(struct net_device *dev)
{
rtnl_lock();
unregister_netdevice(dev);
detach_hdlc_protocol(dev);
unregister_netdevice(dev);
rtnl_unlock();
}