#include <linux/stat.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/toshiba.h>
#define TOSH_MINOR_DEV 181
MODULE_DESCRIPTION("Toshiba laptop SMM driver");
MODULE_SUPPORTED_DEVICE("toshiba");
+static DEFINE_MUTEX(tosh_mutex);
static int tosh_fn;
module_param_named(fn, tosh_fn, int, 0);
MODULE_PARM_DESC(fn, "User specified Fn key detection port");
static const struct file_operations tosh_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = tosh_ioctl,
+ .llseek = noop_llseek,
};
static struct miscdevice tosh_device = {
return -EINVAL;
/* do we need to emulate the fan ? */
- lock_kernel();
+ mutex_lock(&tosh_mutex);
if (tosh_fan==1) {
if (((ax==0xf300) || (ax==0xf400)) && (bx==0x0004)) {
err = tosh_emulate_fan(®s);
- unlock_kernel();
+ mutex_unlock(&tosh_mutex);
break;
}
}
err = tosh_smm(®s);
- unlock_kernel();
+ mutex_unlock(&tosh_mutex);
break;
default:
return -EINVAL;