diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index 537d11869069..3e82a4ac239e 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -880,7 +880,9 @@ static int sata_rcar_probe(struct platform_device *pdev)
 	int ret = 0;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0)
+	if (irq < 0)
+		return irq;
+	if (!irq)
 		return -EINVAL;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(struct sata_rcar_priv),