From 674f2115995b7b588cbf3540c9f9b2448a8c7ea8 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 21 Mar 2011 18:16:39 -0700
Subject: [PATCH] ipx: fix ipx_release()

Commit b0d0d915d1d1a0 (remove the BKL) added a regression, because
sock_put() can free memory while we are going to use it later.

Fix is to delay sock_put() _after_ release_sock().

Reported-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipx/af_ipx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 2731b51923d..9680226640e 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -148,7 +148,6 @@ static void ipx_destroy_socket(struct sock *sk)
 	ipx_remove_socket(sk);
 	skb_queue_purge(&sk->sk_receive_queue);
 	sk_refcnt_debug_dec(sk);
-	sock_put(sk);
 }
 
 /*
@@ -1404,6 +1403,7 @@ static int ipx_release(struct socket *sock)
 	sk_refcnt_debug_release(sk);
 	ipx_destroy_socket(sk);
 	release_sock(sk);
+	sock_put(sk);
 out:
 	return 0;
 }
-- 
2.20.1