if (!port->sc_port.irq) {
spin_lock_irqsave(&port->sc_port.lock, flags);
if (sn_process_input)
- sn_receive_chars(port, NULL, flags);
+ sn_receive_chars(port, flags);
sn_transmit_chars(port, TRANSMIT_RAW);
spin_unlock_irqrestore(&port->sc_port.lock, flags);
mod_timer(&port->sc_timer,