diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index b5f6add..dc14b0b 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -104,8 +104,7 @@
 	}
 
 	sp->irq = pdev->irq;
-	sp->base_address = ioremap(pci_resource_start(pdev, 0),
-					pci_resource_len(pdev, 0));
+	sp->base_address = pci_ioremap_bar(pdev, 0);
 	if (!sp->base_address) {
 		dev_err(sp->dev, "Failed to ioremap pci memory\n");
 		result =  -ENODEV;