diff --git a/drivers/tty/serial/digicolor-usart.c b/drivers/tty/serial/digicolor-usart.c
index a80cdad114f3..02ad6953b167 100644
--- a/drivers/tty/serial/digicolor-usart.c
+++ b/drivers/tty/serial/digicolor-usart.c
@@ -453,7 +453,7 @@ static struct uart_driver digicolor_uart = {
 static int digicolor_uart_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	int ret, index;
+	int irq, ret, index;
 	struct digicolor_port *dp;
 	struct resource *res;
 	struct clk *uart_clk;
@@ -481,9 +481,10 @@ static int digicolor_uart_probe(struct platform_device *pdev)
 	if (IS_ERR(dp->port.membase))
 		return PTR_ERR(dp->port.membase);
 
-	dp->port.irq = platform_get_irq(pdev, 0);
-	if (IS_ERR_VALUE(dp->port.irq))
-		return dp->port.irq;
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+	dp->port.irq = irq;
 
 	dp->port.iotype = UPIO_MEM;
 	dp->port.uartclk = clk_get_rate(uart_clk);