diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index 3d9cb711e87b80..f026bd269cb0b3 100644
--- a/drivers/iommu/intel/dmar.c
+++ b/drivers/iommu/intel/dmar.c
@@ -497,7 +497,7 @@ static int dmar_parse_one_rhsa(struct acpi_dmar_header *header, void *arg)
 		if (drhd->reg_base_addr == rhsa->base_address) {
 			int node = pxm_to_node(rhsa->proximity_domain);
 
-			if (!node_online(node))
+			if (node != NUMA_NO_NODE && !node_online(node))
 				node = NUMA_NO_NODE;
 			drhd->iommu->node = node;
 			return 0;