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authorJiri Pirko <jpirko@redhat.com>2010-04-23 00:53:39 +0000
committerDavid S. Miller <davem@davemloft.net>2010-04-23 16:37:32 -0700
commite773aaff8295e7f3428d9cf6f8a476a33de00716 (patch)
treecdfe16f60d218a7e0ffb4dddd3ff1428703e4190 /net/l2tp
parent3b51cc996e81d8a113416d8094fa4a88f8360a51 (diff)
downloadlinux-e773aaff8295e7f3428d9cf6f8a476a33de00716.tar.bz2
l2tp: fix memory allocation
Since .size is set properly in "struct pernet_operations l2tp_net_ops", allocating space for "struct l2tp_net" by hand is not correct, even causes memory leakage. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/l2tp_core.c29
1 files changed, 1 insertions, 28 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index ecc7aea9efe4..1712af1c7b3f 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1617,14 +1617,9 @@ EXPORT_SYMBOL_GPL(l2tp_session_create);
static __net_init int l2tp_init_net(struct net *net)
{
- struct l2tp_net *pn;
- int err;
+ struct l2tp_net *pn = net_generic(net, l2tp_net_id);
int hash;
- pn = kzalloc(sizeof(*pn), GFP_KERNEL);
- if (!pn)
- return -ENOMEM;
-
INIT_LIST_HEAD(&pn->l2tp_tunnel_list);
spin_lock_init(&pn->l2tp_tunnel_list_lock);
@@ -1633,33 +1628,11 @@ static __net_init int l2tp_init_net(struct net *net)
spin_lock_init(&pn->l2tp_session_hlist_lock);
- err = net_assign_generic(net, l2tp_net_id, pn);
- if (err)
- goto out;
-
return 0;
-
-out:
- kfree(pn);
- return err;
-}
-
-static __net_exit void l2tp_exit_net(struct net *net)
-{
- struct l2tp_net *pn;
-
- pn = net_generic(net, l2tp_net_id);
- /*
- * if someone has cached our net then
- * further net_generic call will return NULL
- */
- net_assign_generic(net, l2tp_net_id, NULL);
- kfree(pn);
}
static struct pernet_operations l2tp_net_ops = {
.init = l2tp_init_net,
- .exit = l2tp_exit_net,
.id = &l2tp_net_id,
.size = sizeof(struct l2tp_net),
};