* Added Matt Domsch's nowayout module option.
*/
-#include <linux/config.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#define WDT_TIMEOUT 60 /* 1 minute */
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-static int nowayout = 1;
-#else
-static int nowayout = 0;
-#endif
-
+static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)");
* Kernel methods.
*/
-static irqreturn_t eurwdt_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t eurwdt_interrupt(int irq, void *dev_id)
{
printk(KERN_CRIT "timeout WDT timeout\n");
printk(KERN_CRIT "Would Reboot.\n");
#else
printk(KERN_CRIT "Initiating system reboot.\n");
- machine_restart(NULL);
+ emergency_restart();
#endif
return IRQ_HANDLED;
}
static ssize_t eurwdt_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- /* Can't seek (pwrite) on this device */
- if (ppos != &file->f_pos)
- return -ESPIPE;
-
if (count) {
if (!nowayout) {
size_t i;
switch(cmd) {
default:
- return -ENOIOCTLCMD;
+ return -ENOTTY;
case WDIOC_GETSUPPORT:
return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
eurwdt_timeout = WDT_TIMEOUT; /* initial timeout */
/* Activate the WDT */
eurwdt_activate_timer();
- return 0;
+ return nonseekable_open(inode, file);
}
/**
*/
-static struct file_operations eurwdt_fops = {
+static const struct file_operations eurwdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = eurwdt_write,
goto out;
}
- ret = request_irq(irq, eurwdt_interrupt, SA_INTERRUPT, "eurwdt", NULL);
+ ret = request_irq(irq, eurwdt_interrupt, IRQF_DISABLED, "eurwdt", NULL);
if(ret) {
printk(KERN_ERR "eurwdt: IRQ %d is not free.\n", irq);
goto outmisc;