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net: handle errors from device_rename

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device_rename can fail with -EEXIST or -ENOMEM, so handle any
problems.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2008-05-14 22:33:38 -07:00 committed by David S. Miller
parent 8f40f672e6
commit dcc997738e
1 changed files with 5 additions and 1 deletions
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6
net/core/dev.c
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@ -903,7 +903,11 @@ int dev_change_name(struct net_device *dev, char *newname)
strlcpy(dev->name, newname, IFNAMSIZ);
rollback:
device_rename(&dev->dev, dev->name);
err = device_rename(&dev->dev, dev->name);
if (err) {
memcpy(dev->name, oldname, IFNAMSIZ);
return err;
}
write_lock_bh(&dev_base_lock);
hlist_del(&dev->name_hlist);