diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 8d5190f..a2a0574 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -260,6 +260,10 @@
 	else
 		retval = port->serial->type->open(tty, port);
 	mutex_unlock(&serial->disc_mutex);
+
+	if (retval < 0)
+		retval = usb_translate_errors(retval);
+
 	return retval;
 }