[PATCH nf 2/3] nfnetlink_cttimeout: add rcu_barrier() on module removal

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Make sure kfree_rcu() released objects before leaving the module removal
exit path.

Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
 net/netfilter/nfnetlink_cttimeout.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 138cd0a..e90e4fc 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -612,6 +612,7 @@ static void __exit cttimeout_exit(void)
 	RCU_INIT_POINTER(nf_ct_timeout_find_get_hook, NULL);
 	RCU_INIT_POINTER(nf_ct_timeout_put_hook, NULL);
 #endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
+	rcu_barrier();
 }
 
 module_init(cttimeout_init);
-- 
2.1.4

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