diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index 522b543f718d82938cecc1430bd95fe2e22b4ba4..6a55aac0c60fcc9f4477b0dfc466558d6ff07dff 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -544,11 +544,13 @@ int ahci_platform_init_host(struct platform_device *pdev,
 	int i, irq, n_ports, rc;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
+	if (irq < 0) {
 		if (irq != -EPROBE_DEFER)
 			dev_err(dev, "no irq\n");
 		return irq;
 	}
+	if (!irq)
+		return -EINVAL;
 
 	hpriv->irq = irq;