diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index e8d7bcbee1a2..05fad2c50c5a 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -790,6 +790,8 @@ static int apple_dart_of_xlate(struct device *dev,
 	struct apple_dart *cfg_dart;
 	int i, sid;
 
+	put_device(&iommu_pdev->dev);
+
 	if (args->args_count != 1)
 		return -EINVAL;
 	sid = args->args[0];