* Matt Domsch : Added nowayout module option
*/
-#include <linux/config.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536, default=" __MODULE_STRING(WD_TIMO) ")");
-#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)");
* wdt_interrupt:
* @irq: Interrupt number
* @dev_id: Unused as we don't allow multiple devices.
- * @regs: Unused.
*
* Handle an interrupt from the board. These are raised when the status
* map changes in what the board considers an interesting way. That means
* a failure condition occurring.
*/
-static irqreturn_t wdt_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t wdt_interrupt(int irq, void *dev_id)
{
/*
* Read the status register see what is up and
printk(KERN_CRIT "Would Reboot.\n");
#else
printk(KERN_CRIT "Initiating system reboot.\n");
- machine_restart(NULL);
+ emergency_restart();
#endif
#else
printk(KERN_CRIT "Reset in 5ms.\n");
* write of data will do, as we we don't define content meaning.
*/
-static ssize_t wdt_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+static ssize_t wdt_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;
static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
int new_heartbeat;
int status;
switch(cmd)
{
default:
- return -ENOIOCTLCMD;
+ return -ENOTTY;
case WDIOC_GETSUPPORT:
- return copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident))?-EFAULT:0;
+ return copy_to_user(argp, &ident, sizeof(ident))?-EFAULT:0;
case WDIOC_GETSTATUS:
wdt_get_status(&status);
- return put_user(status,(int *)arg);
+ return put_user(status, p);
case WDIOC_GETBOOTSTATUS:
- return put_user(0, (int *)arg);
+ return put_user(0, p);
case WDIOC_KEEPALIVE:
wdt_ping();
return 0;
case WDIOC_SETTIMEOUT:
- if (get_user(new_heartbeat, (int *)arg))
+ if (get_user(new_heartbeat, p))
return -EFAULT;
if (wdt_set_heartbeat(new_heartbeat))
wdt_ping();
/* Fall */
case WDIOC_GETTIMEOUT:
- return put_user(heartbeat, (int *)arg);
+ return put_user(heartbeat, p);
}
}
* Activate
*/
wdt_start();
- return 0;
+ return nonseekable_open(inode, file);
}
/**
* farenheit. It was designed by an imperial measurement luddite.
*/
-static ssize_t wdt_temp_read(struct file *file, char *buf, size_t count, loff_t *ptr)
+static ssize_t wdt_temp_read(struct file *file, char __user *buf, size_t count, loff_t *ptr)
{
int temperature;
- /* Can't seek (pread) on this device */
- if (ptr != &file->f_pos)
- return -ESPIPE;
-
if (wdt_get_temperature(&temperature))
return -EFAULT;
static int wdt_temp_open(struct inode *inode, struct file *file)
{
- return 0;
+ return nonseekable_open(inode, file);
}
/**
*/
-static struct file_operations wdt_fops = {
+static const struct file_operations wdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = wdt_write,
};
#ifdef CONFIG_WDT_501
-static struct file_operations wdt_temp_fops = {
+static const struct file_operations wdt_temp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = wdt_temp_read,
goto out;
}
- ret = request_irq(irq, wdt_interrupt, SA_INTERRUPT, "wdt501p", NULL);
+ ret = request_irq(irq, wdt_interrupt, IRQF_DISABLED, "wdt501p", NULL);
if(ret) {
printk(KERN_ERR "wdt: IRQ %d is not free.\n", irq);
goto outreg;