diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
index 1bdc8d6432fe..7133fceed35e 100644
--- a/drivers/tty/serial/8250/8250_dma.c
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -34,7 +34,7 @@ static void __dma_tx_complete(void *param)
 		uart_write_wakeup(&p->port);
 
 	ret = serial8250_tx_dma(p);
-	if (ret)
+	if (ret || !dma->tx_running)
 		serial8250_set_THRI(p);
 
 	spin_unlock_irqrestore(&p->port.lock, flags);
@@ -80,7 +80,6 @@ int serial8250_tx_dma(struct uart_8250_port *p)
 
 	if (uart_tx_stopped(&p->port) || uart_circ_empty(xmit)) {
 		/* We have been called from __dma_tx_complete() */
-		serial8250_rpm_put_tx(p);
 		return 0;
 	}
 
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 5bba852d30f7..40d4895fd208 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1948,9 +1948,12 @@ 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) &&
-		(up->ier & UART_IER_THRI))
-		serial8250_tx_chars(up);
+	if ((status & UART_LSR_THRE) && (up->ier & UART_IER_THRI)) {
+		if (!up->dma || up->dma->tx_err)
+			serial8250_tx_chars(up);
+		else
+			__stop_tx(up);
+	}
 
 	uart_unlock_and_check_sysrq_irqrestore(port, flags);