diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c8ced7712a8e..42966611a192 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -5728,7 +5728,7 @@ static void intel_iommu_get_resv_regions(struct device *device,
 		struct pci_dev *pdev = to_pci_dev(device);
 
 		if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA) {
-			reg = iommu_alloc_resv_region(0, 1UL << 24, 0,
+			reg = iommu_alloc_resv_region(0, 1UL << 24, prot,
 						   IOMMU_RESV_DIRECT_RELAXABLE);
 			if (reg)
 				list_add_tail(&reg->list, head);