diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index 89fb576..9d463ef 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -698,9 +698,6 @@
     }
 
     sdev = container_of(iommu_mr, IOMMUDevice, iommu_mr);
-    if (!sdev) {
-        return -EINVAL;
-    }
 
     count = virtio_iommu_fill_resv_mem_prop(sdev, ep_id, buf, free);
     if (count < 0) {