diff options
Diffstat (limited to 'drivers/isdn/mISDN/timerdev.c')
| -rw-r--r-- | drivers/isdn/mISDN/timerdev.c | 7 |
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; } |