[PATCH] Fix watchdog drivers to call emergency_reboot()

If a watchdog driver has decided it is time to reboot the system
we know something is wrong and we are in interrupt context
so emergency_reboot() is what we want.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/char/watchdog/eurotechwdt.c

@@ -167,7 +167,7 @@ static irqreturn_t eurwdt_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	printk(KERN_CRIT "Would Reboot.\n");
 #else
 	printk(KERN_CRIT "Initiating system reboot.\n");
-	machine_restart(NULL);
+	emergency_restart(NULL);
 #endif
 	return IRQ_HANDLED;
 }

drivers/char/watchdog/softdog.c

@@ -97,7 +97,7 @@ static void watchdog_fire(unsigned long data)
 	else
 	{
 		printk(KERN_CRIT PFX "Initiating system reboot.\n");
-		machine_restart(NULL);
+		emergency_restart(NULL);
 		printk(KERN_CRIT PFX "Reboot didn't ?????\n");
 	}
 }

drivers/char/watchdog/wdt.c

@@ -266,7 +266,7 @@ static irqreturn_t wdt_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		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");

drivers/char/watchdog/wdt_pci.c

@@ -311,7 +311,7 @@ static irqreturn_t wdtpci_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		printk(KERN_CRIT PFX "Would Reboot.\n");
 #else
 		printk(KERN_CRIT PFX "Initiating system reboot.\n");
-		machine_restart(NULL);
+		emergency_restart(NULL);
 #endif
 #else
 		printk(KERN_CRIT PFX "Reset in 5ms.\n");