* option) any later version.
*/
#include <linux/ds1286.h>
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/miscdevice.h>
static int ds1286_open(struct inode *inode, struct file *file)
{
+ lock_kernel();
spin_lock_irq(&ds1286_lock);
if (ds1286_status & RTC_IS_OPEN)
ds1286_status |= RTC_IS_OPEN;
spin_unlock_irq(&ds1286_lock);
+ unlock_kernel();
return 0;
out_busy:
spin_lock_irq(&ds1286_lock);
+ unlock_kernel();
return -EBUSY;
}
{
unsigned char save_control;
unsigned long flags;
- unsigned long uip_watchdog = jiffies;
/*
* read RTC once any update in progress is done. The update
*/
if (ds1286_is_updating() != 0)
- while (time_before(jiffies, uip_watchdog + 2*HZ/100))
- barrier();
+ msleep(20);
/*
* Only the values that we read from the RTC are set. We leave