diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 3664d0d00338e145ddc493651bd6a255763cdf9b..147ab1c0b573be4a409c5d2a4b523a978d38cb3d 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1272,7 +1272,8 @@ iommu_support_dev_iotlb (struct dmar_domain *domain, struct intel_iommu *iommu,
 
 	spin_lock_irqsave(&device_domain_lock, flags);
 	list_for_each_entry(info, &domain->devices, link)
-		if (info->bus == bus && info->devfn == devfn) {
+		if (info->iommu == iommu && info->bus == bus &&
+		    info->devfn == devfn) {
 			found = 1;
 			break;
 		}