diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 0a03379c16e9..4e0c8a9f8600 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2196,7 +2196,8 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
 		return;
 
 	mutex_lock(&group->mutex);
-	if (iommu_group_device_count(group) != 1) {
+	/* Don't break detach if iommu shared by more than one master */
+	if (iommu_group_device_count(group) < 1) {
 		WARN_ON(1);
 		goto out_unlock;
 	}