From: Eric Dumazet <dada1@cosmosbay.com>
Date: Mon, 24 Nov 2008 22:05:22 +0000 (-0800)
Subject: net: Make sure BHs are disabled in sock_prot_inuse_add()
X-Git-Tag: v2.6.29-rc1~581^2~524
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3755810cebf7f9902b05c7ba9baeac0fc44881be;p=profile%2Fivi%2Fkernel-x86-ivi.git

net: Make sure BHs are disabled in sock_prot_inuse_add()

There is still a call to sock_prot_inuse_add() in af_netlink
while in a preemptable section. Add explicit BH disable around
this call.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index c7d7657..9eb895c 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -515,7 +515,9 @@ static int netlink_release(struct socket *sock)
 	kfree(nlk->groups);
 	nlk->groups = NULL;
 
+	local_bh_disable();
 	sock_prot_inuse_add(sock_net(sk), &netlink_proto, -1);
+	local_bh_enable();
 	sock_put(sk);
 	return 0;
 }