diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 5f7f073f285e..db5c62b0322f 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -678,6 +678,11 @@ static void pch_request_dma(struct uart_port *port)
 	/* Get DMA's dev information */
 	dma_dev = pci_get_slot(priv->pdev->bus,
 			PCI_DEVFN(PCI_SLOT(priv->pdev->devfn), 0));
+	if (!dma_dev) {
+		dev_err(priv->port.dev, "%s: failed to get DMA device\n",
+			__func__);
+		return;
+	}
 
 	/* Set Tx DMA */
 	param = &priv->param_tx;