diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 7f93abdac994..9dbd1fa84e88 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -827,7 +827,6 @@ int usb_serial_probe(struct usb_interface *interface,
 			num_ports = type->num_ports;
 	}
 
-	serial->minor = minor;
 	serial->num_ports = num_ports;
 	serial->num_bulk_in = num_bulk_in;
 	serial->num_bulk_out = num_bulk_out;
@@ -981,6 +980,7 @@ int usb_serial_probe(struct usb_interface *interface,
 		dev_err(&interface->dev, "No more free serial devices\n");
 		goto probe_error;
 	}
+	serial->minor = minor;
 
 	/* register all of the individual ports with the driver core */
 	for (i = 0; i < num_ports; ++i) {