diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 60ba238090d92f3eed93de994d5fd7271a68b8ce..5fea665af99d1168cd8541746f45fa6e17e5a14c 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -110,6 +110,7 @@ void of_iommu_set_ops(struct device_node *np, struct iommu_ops *ops)
 	if (WARN_ON(!iommu))
 		return;
 
+	of_node_get(np);
 	INIT_LIST_HEAD(&iommu->list);
 	iommu->np = np;
 	iommu->ops = ops;