From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 5 Mar 2012 00:03:48 +0000 (+0100)
Subject: NFC: Unlink LLCP child sockets from llcp_sock_release
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0c31835993e622fa9d407807e384c0f9b971d53b;p=openwrt%2Fstaging%2Fblogic.git

NFC: Unlink LLCP child sockets from llcp_sock_release

The parent socket (the bound one) could be freed before its children, so
we should unlink the children without trying to reach it through the parent.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index b8bef367ee49..d3861773fab0 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -327,20 +327,10 @@ static int llcp_sock_release(struct socket *sock)
 
 	mutex_lock(&local->socket_lock);
 
-	if (llcp_sock == local->sockets[llcp_sock->ssap]) {
+	if (llcp_sock == local->sockets[llcp_sock->ssap])
 		local->sockets[llcp_sock->ssap] = NULL;
-	} else {
-		struct nfc_llcp_sock *parent, *s, *n;
-
-		parent = local->sockets[llcp_sock->ssap];
-
-		list_for_each_entry_safe(s, n, &parent->list, list)
-			if (llcp_sock == s) {
-				list_del(&s->list);
-				break;
-			}
-
-	}
+	else
+		list_del(&llcp_sock->list);
 
 	mutex_unlock(&local->socket_lock);