diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 069b94b55ab2b41469b446b1277a3a5e44a46a27..db4197689ffa1f48ddadd3f795b2ad690d9a4cc7 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -2838,7 +2838,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
 	spin_unlock_irqrestore(&device_domain_lock, flags);
 
 	/* PASID table is mandatory for a PCI device in scalable mode. */
-	if (dev && dev_is_pci(dev) && sm_supported(iommu)) {
+	if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev)) {
 		ret = intel_pasid_alloc_table(dev);
 		if (ret) {
 			dev_err(dev, "PASID table allocation failed\n");