From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 5 Mar 2012 00:03:40 +0000 (+0100)
Subject: NFC: Clear LLCP SDPs whan MAC goes down
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=b9a76f1d3c6da47b2fa115ff1c0de229e8d06f8f;p=~shefty%2Frdma-dev.git

NFC: Clear LLCP SDPs whan MAC goes down

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

diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 443407e964c..577bcb92ea9 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -97,6 +97,17 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
 	mutex_unlock(&local->socket_lock);
 }
 
+static void nfc_llcp_clear_sdp(struct nfc_llcp_local *local)
+{
+	mutex_lock(&local->sdp_lock);
+
+	local->local_wks = 0;
+	local->local_sdp = 0;
+	local->local_sap = 0;
+
+	mutex_unlock(&local->sdp_lock);
+}
+
 static void nfc_llcp_timeout_work(struct work_struct *work)
 {
 	struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local,
@@ -857,6 +868,8 @@ void nfc_llcp_mac_is_down(struct nfc_dev *dev)
 	if (local == NULL)
 		return;
 
+	nfc_llcp_clear_sdp(local);
+
 	/* Close and purge all existing sockets */
 	nfc_llcp_socket_release(local);
 }