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ipv6: clean up dev_snmp6 proc entry when we fail to initialize inet6_dev 

In ipv6_add_dev, when addrconf_sysctl_register fails, we do not clean up
the dev_snmp6 entry that we have already registered for this device.
Call snmp6_unregister_dev in this case.

Fixes: a317a2f19d ("ipv6: fail early when creating netdev named all or default")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sabrina Dubroca 2015-11-04 14:47:53 +01:00 committed by David S. Miller
parent 87aec47d17
commit 2a189f9e57
1 changed files with 1 additions and 0 deletions
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net/ipv6/addrconf.c
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@ -418,6 +418,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
if (err) {
ipv6_mc_destroy_dev(ndev);
del_timer(&ndev->regen_timer);
snmp6_unregister_dev(ndev);
goto err_release;
}
/* protected by rtnl_lock */