summaryrefslogtreecommitdiffstats
path: root/drivers/isdn/mISDN/timerdev.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/isdn/mISDN/timerdev.c')
-rw-r--r--drivers/isdn/mISDN/timerdev.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index 81048b8ed8ad..de43c8c70ad0 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -24,9 +24,10 @@
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/mISDNif.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include "core.h"
+static DEFINE_MUTEX(mISDN_mutex);
static u_int *debug;
@@ -224,7 +225,7 @@ mISDN_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
if (*debug & DEBUG_TIMER)
printk(KERN_DEBUG "%s(%p, %x, %lx)\n", __func__,
filep, cmd, arg);
- lock_kernel();
+ mutex_lock(&mISDN_mutex);
switch (cmd) {
case IMADDTIMER:
if (get_user(tout, (int __user *)arg)) {
@@ -256,7 +257,7 @@ mISDN_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
default:
ret = -EINVAL;
}
- unlock_kernel();
+ mutex_unlock(&mISDN_mutex);
return ret;
}
OpenPOWER on IntegriCloud