#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/types.h>
return i;
}
-/* No BKL needed here; only global (giu_nr_pins) is only set
- at probe time */
static int gpio_open(struct inode *inode, struct file *file)
{
unsigned int pin;
+ cycle_kernel_lock();
pin = iminor(inode);
if (pin >= giu_nr_pins)
return -EBADF;