watchdog: gpio: Do not use device pointer from struct watchdog_device

The device pointer in struct watchdog_device has a different lifetime
than the driver code and should not be used in drivers. Use the pointer
to the parent device instead.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/gpio_wdt.c

@@ -54,7 +54,8 @@ static void gpio_wdt_hwping(unsigned long data)
 
 	if (priv->armed && time_after(jiffies, priv->last_jiffies +
 				      msecs_to_jiffies(wdd->timeout * 1000))) {
-		dev_crit(wdd->dev, "Timer expired. System will reboot soon!\n");
+		dev_crit(wdd->parent,
+			 "Timer expired. System will reboot soon!\n");
 		return;
 	}