diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 90d468b002569dcd3f00f6725bad4141a6fdeb9d..5881d8e69aa419769bb42eea8ed0fa93e51695ec 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1818,7 +1818,7 @@ mlx5_alloc_priv_descs(struct ib_device *device,
 static void
 mlx5_free_priv_descs(struct mlx5_ib_mr *mr)
 {
-	if (!mr->umem && mr->descs) {
+	if (!mr->umem && mr->ibmr.type != IB_MR_TYPE_DM && mr->descs) {
 		struct ib_device *device = mr->ibmr.device;
 		int size = mr->max_descs * mr->desc_size;
 		struct mlx5_ib_dev *dev = to_mdev(device);