diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index e0af6cd7ba4f7cef79dcd0e643230188ebf42ee2..af7a20dc6e0934e0945c95e21c7b1eb07e11fdd1 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -127,8 +127,7 @@ static ssize_t fail_iommu_store(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(fail_iommu, S_IRUGO|S_IWUSR, fail_iommu_show,
-		   fail_iommu_store);
+static DEVICE_ATTR_RW(fail_iommu);
 
 static int fail_iommu_bus_notify(struct notifier_block *nb,
 				 unsigned long action, void *data)