From e2f67e4fb931b975058b3bd48eaac43780c92c88 Mon Sep 17 00:00:00 2001
From: Manu Abraham <abraham.manu@gmail.com>
Date: Thu, 3 Dec 2009 05:42:10 -0300
Subject: V4L/DVB (13712): [Mantis] Add locking for concurrent access

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/dvb/mantis/mantis_common.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/media/dvb/mantis/mantis_common.h')

diff --git a/drivers/media/dvb/mantis/mantis_common.h b/drivers/media/dvb/mantis/mantis_common.h
index 197393e700f7..e354e7678a57 100644
--- a/drivers/media/dvb/mantis/mantis_common.h
+++ b/drivers/media/dvb/mantis/mantis_common.h
@@ -25,6 +25,7 @@
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/mutex.h>
 
 #include "dvbdev.h"
 #include "dvb_demux.h"
@@ -109,6 +110,7 @@ struct mantis_pci {
 	struct i2c_adapter	adapter;
 	int			i2c_rc;
 	wait_queue_head_t	i2c_wq;
+	struct mutex		i2c_lock;
 
 	/*	DVB stuff		*/
 	struct dvb_adapter	dvb_adapter;
-- 
cgit