diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index b461cf2cc2ca..3be008a85f68 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1798,6 +1798,10 @@ EXPORT_SYMBOL_GPL(serial8250_modem_status);
 static bool handle_rx_dma(struct uart_8250_port *up, unsigned int iir)
 {
 	switch (iir & 0x3f) {
+	case UART_IIR_RDI:
+		if (!up->dma->rx_running)
+			break;
+		/* fall-through */
 	case UART_IIR_RX_TIMEOUT:
 		serial8250_rx_dma_flush(up);
 		/* fall-through */