[device][serial] call rx_indicate function only if the rx_length is not equal 0
@@ -1180,8 +1180,11 @@ void rt_hw_serial_isr(struct rt_serial_device *serial, int event)
(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
rt_hw_interrupt_enable(level);
+ if (rx_length)
+ {
serial->parent.rx_indicate(&serial->parent, rx_length);
}
+ }
break;
}
case RT_SERIAL_EVENT_TX_DONE:
