From e66dbd6c59c9f1def907e4e270c7006e0a540339 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Sat, 11 Sep 2010 19:53:25 +0200
Subject: [PATCH] --- yaml --- r: 212924 b: refs/heads/master c:
 adfedd216d9f0bc3f5bfa8aab42932301d4edc31 h: refs/heads/master v: v3

---
 [refs]                                 | 2 +-
 trunk/drivers/media/dvb/bt8xx/dst_ca.c | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/[refs] b/[refs]
index 94601f2c1416..823d8e5ae09b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: efbec1cd042008b49fe3cad45604088c54905a06
+refs/heads/master: adfedd216d9f0bc3f5bfa8aab42932301d4edc31
diff --git a/trunk/drivers/media/dvb/bt8xx/dst_ca.c b/trunk/drivers/media/dvb/bt8xx/dst_ca.c
index cf8705162845..d75788b4e22e 100644
--- a/trunk/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/trunk/drivers/media/dvb/bt8xx/dst_ca.c
@@ -22,7 +22,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/string.h>
 #include <linux/dvb/ca.h>
 #include "dvbdev.h"
@@ -52,6 +52,7 @@
 } while(0)
 
 
+static DEFINE_MUTEX(dst_ca_mutex);
 static unsigned int verbose = 5;
 module_param(verbose, int, 0644);
 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
@@ -564,7 +565,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
 	void __user *arg = (void __user *)ioctl_arg;
 	int result = 0;
 
-	lock_kernel();
+	mutex_lock(&dst_ca_mutex);
 	dvbdev = file->private_data;
 	state = (struct dst_state *)dvbdev->priv;
 	p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
@@ -652,7 +653,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
 	kfree (p_ca_slot_info);
 	kfree (p_ca_caps);
 
-	unlock_kernel();
+	mutex_unlock(&dst_ca_mutex);
 	return result;
 }