diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index d2f3310abe543a243304af3b1ae806728eff56d6..fdb6fd0843863a9497daab3b39523133eb001dfd 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1875,7 +1875,8 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
 			status = serial8250_rx_chars(up, status);
 	}
 	serial8250_modem_status(up);
-	if ((!up->dma || up->dma->tx_err) && (status & UART_LSR_THRE))
+	if ((!up->dma || up->dma->tx_err) && (status & UART_LSR_THRE) &&
+		(up->ier & UART_IER_THRI))
 		serial8250_tx_chars(up);
 
 	uart_unlock_and_check_sysrq(port, flags);