watchdog: riowd: remove unneeded semicolon

Fix the following coccicheck warning:

drivers/watchdog/riowd.c:144:2-3: Unneeded semicolon

Signed-off-by: Jason Yan <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

Author: JasonYanHw

drivers/watchdog/riowd.c

@@ -141,7 +141,7 @@ static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 	default:
 		return -EINVAL;
-	};
+	}
 
 	return 0;
 }