#include <linux/init.h>
#include <linux/poll.h>
#include <linux/proc_fs.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/workqueue.h>
#include <asm/uaccess.h>
* ioctls.
*/
+static DEFINE_MUTEX(gen_rtc_mutex);
static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
/*
{
int ret;
- lock_kernel();
+ mutex_lock(&gen_rtc_mutex);
ret = gen_rtc_ioctl(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&gen_rtc_mutex);
return ret;
}
static int gen_rtc_open(struct inode *inode, struct file *file)
{
- lock_kernel();
+ mutex_lock(&gen_rtc_mutex);
if (gen_rtc_status & RTC_IS_OPEN) {
- unlock_kernel();
+ mutex_unlock(&gen_rtc_mutex);
return -EBUSY;
}
gen_rtc_status |= RTC_IS_OPEN;
gen_rtc_irq_data = 0;
irq_active = 0;
- unlock_kernel();
+ mutex_unlock(&gen_rtc_mutex);
return 0;
}
.unlocked_ioctl = gen_rtc_unlocked_ioctl,
.open = gen_rtc_open,
.release = gen_rtc_release,
+ .llseek = noop_llseek,
};
static struct miscdevice rtc_gen_dev =