From e773aaff8295e7f3428d9cf6f8a476a33de00716 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Fri, 23 Apr 2010 00:53:39 +0000 Subject: 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 Signed-off-by: David S. Miller --- net/l2tp/l2tp_core.c | 29 +---------------------------- 1 file changed, 1 insertion(+), 28 deletions(-) (limited to 'net/l2tp') diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index ecc7aea9efe..1712af1c7b3 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), }; -- cgit v1.2.3-70-g09d2