diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 7a804d6b3a4c..0ded8bd6ec85 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -563,11 +563,9 @@ static void mct_u232_read_int_callback(struct urb *urb)
 	 * Work-a-round: handle the 'usual' bulk-in pipe here
 	 */
 	if (urb->transfer_buffer_length > 2) {
-		int i;
 		tty = port->port.tty;
 		if (urb->actual_length) {
-			for (i = 0; i < urb->actual_length ; ++i)
-				tty_insert_flip_char(tty, data[i], 0);
+			tty_insert_flip_string(tty, data, urb->actual_length);
 			tty_flip_buffer_push(tty);
 		}
 		goto exit;