From: Jiri Pirko Date: Fri, 23 Apr 2010 01:01:52 +0000 (+0000) Subject: l2tp_eth: fix memory allocation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3a737028630bb3c2b9efc38b9ddef2e09b06b808;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git l2tp_eth: fix memory allocation Since .size is set properly in "struct pernet_operations l2tp_eth_net_ops", allocating space for "struct l2tp_eth_net" by hand is not correct, even causes memory leakage. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index ca1164afeb74..58c6c4cda73b 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -276,43 +276,16 @@ out: static __net_init int l2tp_eth_init_net(struct net *net) { - struct l2tp_eth_net *pn; - int err; - - pn = kzalloc(sizeof(*pn), GFP_KERNEL); - if (!pn) - return -ENOMEM; + struct l2tp_eth_net *pn = net_generic(net, l2tp_eth_net_id); INIT_LIST_HEAD(&pn->l2tp_eth_dev_list); spin_lock_init(&pn->l2tp_eth_lock); - err = net_assign_generic(net, l2tp_eth_net_id, pn); - if (err) - goto out; - return 0; - -out: - kfree(pn); - return err; -} - -static __net_exit void l2tp_eth_exit_net(struct net *net) -{ - struct l2tp_eth_net *pn; - - pn = net_generic(net, l2tp_eth_net_id); - /* - * if someone has cached our net then - * further net_generic call will return NULL - */ - net_assign_generic(net, l2tp_eth_net_id, NULL); - kfree(pn); } static __net_initdata struct pernet_operations l2tp_eth_net_ops = { .init = l2tp_eth_init_net, - .exit = l2tp_eth_exit_net, .id = &l2tp_eth_net_id, .size = sizeof(struct l2tp_eth_net), };