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vlan: link the upper neighbour only after registering 

Otherwise users might access it without being fully registered, as per
sysfs - it only inits in register_netdevice(), so is unusable till it is
called.

CC: Patrick McHardy <kaber@trash.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Veaceslav Falico 2013-09-25 09:20:29 +02:00 committed by David S. Miller
parent 4fee991a46
commit 5df27e6cb2
1 changed files with 7 additions and 7 deletions
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14
net/8021q/vlan.c
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@ -169,13 +169,13 @@ int register_vlan_dev(struct net_device *dev)
if (err < 0)
goto out_uninit_mvrp;
err = netdev_upper_dev_link(real_dev, dev);
if (err)
goto out_uninit_mvrp;
err = register_netdevice(dev);
if (err < 0)
goto out_upper_dev_unlink;
goto out_uninit_mvrp;
err = netdev_upper_dev_link(real_dev, dev);
if (err)
goto out_unregister_netdev;
/* Account for reference in struct vlan_dev_priv */
dev_hold(real_dev);
@ -191,8 +191,8 @@ int register_vlan_dev(struct net_device *dev)
return 0;
out_upper_dev_unlink:
netdev_upper_dev_unlink(real_dev, dev);
out_unregister_netdev:
unregister_netdevice(dev);
out_uninit_mvrp:
if (grp->nr_vlan_devs == 0)
vlan_mvrp_uninit_applicant(real_dev);