From 1e7af3b2cdf2dc9e4fd86c799414b3c504975270 Mon Sep 17 00:00:00 2001 From: Vasily Averin Date: Sun, 12 Nov 2017 22:30:31 +0300 Subject: [PATCH] l2tp: exit_net cleanup check added Be sure that l2tp_session_hlist array initialized in net_init hook was return to initial state. Signed-off-by: Vasily Averin Signed-off-by: David S. Miller --- net/l2tp/l2tp_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 350fcd39ebd8ee..115918ad8eca5a 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1833,6 +1833,7 @@ static __net_exit void l2tp_exit_net(struct net *net) { struct l2tp_net *pn = l2tp_pernet(net); struct l2tp_tunnel *tunnel = NULL; + int hash; rcu_read_lock_bh(); list_for_each_entry_rcu(tunnel, &pn->l2tp_tunnel_list, list) { @@ -1842,6 +1843,9 @@ static __net_exit void l2tp_exit_net(struct net *net) flush_workqueue(l2tp_wq); rcu_barrier(); + + for (hash = 0; hash < L2TP_HASH_SIZE_2; hash++) + WARN_ON_ONCE(!hlist_empty(&pn->l2tp_session_hlist[hash])); } static struct pernet_operations l2tp_net_ops = {