--- zzzz-none-000/linux-2.6.39.4/drivers/usb/serial/console.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/drivers/usb/serial/console.c	2021-11-10 13:23:10.000000000 +0000
@@ -190,6 +190,7 @@
 	kfree(tty);
  reset_open_count:
 	port->port.count = 0;
+	info->port = NULL;
 	usb_autopm_put_interface(serial->interface);
  error_get_interface:
 	usb_serial_put(serial);