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[DECNET]: Handle a failure in neigh_parms_alloc (take 2)

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While enhancing the neighbour code to handle multiple network
namespaces I noticed that decnet is assuming neigh_parms_alloc
will allways succeed, which is clearly wrong.  So handle the
failure.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Steven Whitehouse <steve@chygwyn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2007-01-25 15:51:51 -08:00 committed by David S. Miller
parent 24cb230b58
commit 95743deb34
1 changed files with 9 additions and 2 deletions
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11
net/decnet/dn_dev.c
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@ -1145,16 +1145,23 @@ struct dn_dev *dn_dev_create(struct net_device *dev, int *err)
init_timer(&dn_db->timer);
dn_db->uptime = jiffies;
dn_db->neigh_parms = neigh_parms_alloc(dev, &dn_neigh_table);
if (!dn_db->neigh_parms) {
dev->dn_ptr = NULL;
kfree(dn_db);
return NULL;
}
if (dn_db->parms.up) {
if (dn_db->parms.up(dev) < 0) {
neigh_parms_release(&dn_neigh_table, dn_db->neigh_parms);
dev->dn_ptr = NULL;
kfree(dn_db);
return NULL;
}
}
dn_db->neigh_parms = neigh_parms_alloc(dev, &dn_neigh_table);
dn_dev_sysctl_register(dev, &dn_db->parms);
dn_dev_set_timer(dev);