diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 461958f..af6d4f3 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -428,7 +428,7 @@
 	}
 
 	base = pci_iomap(pdev, 1, 0);
-	if (base == 0) {
+	if (!base) {
 		dev_err(&pdev->dev, "%s : pci_iomap failed", __func__);
 		ret = -ENOMEM;
 		goto err_iomap;