--- zzzz-none-000/linux-4.4.60/drivers/usb/serial/console.c 2017-04-08 07:53:53.000000000 +0000 +++ jet-2400-727/linux-4.4.60/drivers/usb/serial/console.c 2021-03-17 14:36:41.000000000 +0000 @@ -189,6 +189,7 @@ tty_kref_put(tty); reset_open_count: port->port.count = 0; + info->port = NULL; usb_autopm_put_interface(serial->interface); error_get_interface: usb_serial_put(serial);