[PATCH] simplify wdt285 copying.

copy_to_user already does the relevant checking.

drivers/char/wdt285.c

@@ -136,11 +136,9 @@ static int watchdog_ioctl(struct inode *inode, struct file *file,
 		default:
 			return -ENOTTY;
 		case WDIOC_GETSUPPORT:
-			i = verify_area(VERIFY_WRITE, (void*) arg, sizeof(struct watchdog_info));
-			if (i)
-				return i;
-			else
-				return copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident));
+			if(copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident)))
+				return -EFAULT;
+			return 0;
 		case WDIOC_GETSTATUS:
 		case WDIOC_GETBOOTSTATUS:
 			return put_user(0,(int *)arg);