tcp: Like icmp use register_pernet_subsys

To remove the possibility of packets flying around when network
devices are being cleaned up use reisger_pernet_subsys instead of
register_pernet_device.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Acked-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 19d7b429a2625b8ecc3b7fc35392d3e0af99ffd2..cf74c416831a4980de6d07013431fb92e563bb3f 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2443,7 +2443,7 @@ static struct pernet_operations __net_initdata tcp_sk_ops = {
 void __init tcp_v4_init(void)
 {
        inet_hashinfo_init(&tcp_hashinfo);
-       if (register_pernet_device(&tcp_sk_ops))
+       if (register_pernet_subsys(&tcp_sk_ops))
                panic("Failed to create the TCP control socket.\n");
 }