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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-07-25 18:40:14 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-25 18:40:14 +0400
commitff877ea80efa2015b6263766f78ee42c2a1b32f9 (patch)
tree85205005c611ab774702148558321c6fb92f1ccd /drivers/char/ds1620.c
parent30821fee4f0cb3e6d241d9f7ddc37742212e3eb7 (diff)
parentd37e6bf68fc1eb34a4ad21d9ae8890ed37ea80e7 (diff)
downloadlinux-ff877ea80efa2015b6263766f78ee42c2a1b32f9.tar.xz
Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
Diffstat (limited to 'drivers/char/ds1620.c')
-rw-r--r--drivers/char/ds1620.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c
index 334ad5bbe6b6..34275c6f1da2 100644
--- a/drivers/char/ds1620.c
+++ b/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,
};