diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index a365be040b36..98723cb9ac68 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -518,7 +518,7 @@ static int __devinit giu_probe(struct platform_device *pdev)
 	if (!res)
 		return -EBUSY;
 
-	giu_base = ioremap(res->start, res->end - res->start + 1);
+	giu_base = ioremap(res->start, resource_size(res));
 	if (!giu_base)
 		return -ENOMEM;