diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 3dcaef0683823380a4cab865e50462c5160a02f0..2ba321921f81a11212fde6fd4919728b0f91db8e 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1206,6 +1206,7 @@ static void _omap_iommu_detach_dev(struct omap_iommu_domain *omap_domain,
 
 	omap_domain->iommu_dev = arch_data->iommu_dev = NULL;
 	omap_domain->dev = NULL;
+	oiommu->domain = NULL;
 }
 
 static void omap_iommu_detach_dev(struct iommu_domain *domain,