From 8e27231b22f4d864a58fbe07ab70b1a7e721cb07 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:15:50 +0200
Subject: [PATCH] --- yaml --- r: 100343 b: refs/heads/master c:
 080c2226474fa3060fadce9a2341004f477aadb3 h: refs/heads/master i:   100341:
 1813bf2a504730eb15467653476ce14e3572669b   100339:
 01ffd91829d2b7c81d01093ba7951b3d8590deae   100335:
 66fd87d858d7b02bc5b80fbd201d21d45002d87a v: v3

---
 [refs]                      | 2 +-
 trunk/drivers/char/ds1620.c | 9 ++++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 4ae5825dafc2..f4f5823a2173 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7ccef46320ecd52c4d20c8aad592599df76bb7a1
+refs/heads/master: 080c2226474fa3060fadce9a2341004f477aadb3
diff --git a/trunk/drivers/char/ds1620.c b/trunk/drivers/char/ds1620.c
index 334ad5bbe6b6..34275c6f1da2 100644
--- a/trunk/drivers/char/ds1620.c
+++ b/trunk/drivers/char/ds1620.c
@@ -8,6 +8,7 @@
 #include <linux/proc_fs.h>
 #include <linux/capability.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
@@ -208,6 +209,12 @@ static void ds1620_read_state(struct therm *therm)
 	therm->hi = cvt_9_to_int(ds1620_in(THERM_READ_TH, 9));
 }
 
+static int ds1620_open(struct inode *inode, struct file *file)
+{
+	cycle_kernel_lock();
+	return nonseekable_open(inode, file);
+}
+
 static ssize_t
 ds1620_read(struct file *file, char __user *buf, size_t count, loff_t *ptr)
 {
@@ -336,7 +343,7 @@ static struct proc_dir_entry *proc_therm_ds1620;
 
 static const struct file_operations ds1620_fops = {
 	.owner		= THIS_MODULE,
-	.open		= nonseekable_open,
+	.open		= ds1620_open,
 	.read		= ds1620_read,
 	.ioctl		= ds1620_ioctl,
 };