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decnet: avoid touching device refcount in dn_dev_by_index() 

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2009-11-04 10:59:38 -08:00 committed by David S. Miller
parent d94d9fee9f
commit b4d745db12
1 changed files with 6 additions and 4 deletions
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10
net/decnet/dn_dev.c
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@ -600,15 +600,17 @@ static void dn_dev_check_default(struct net_device *dev)
dev_put(dev);
}
/*
* Called with RTNL
*/
static struct dn_dev *dn_dev_by_index(int ifindex)
{
struct net_device *dev;
struct dn_dev *dn_dev = NULL;
dev = dev_get_by_index(&init_net, ifindex);
if (dev) {
dev = __dev_get_by_index(&init_net, ifindex);
if (dev)
dn_dev = dev->dn_ptr;
dev_put(dev);
}
return dn_dev;
}