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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 <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasily Averin 2017-11-12 22:30:31 +03:00 committed by David S. Miller
parent ce2b7db38a
commit 1e7af3b2cd
1 changed files with 4 additions and 0 deletions
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4
net/l2tp/l2tp_core.c
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@ -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 = {