On Mon, Aug 23, 2021 at 01:29:25PM -0700, Luis Chamberlain wrote: > + rc = device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups); > + if (rc) > + goto out_cleanup_ns_from_list; > + Nit: no real need for the rc variable here as we never use the actual value. > if (!nvme_ns_head_multipath(ns->head)) > nvme_add_ns_cdev(ns); > > @@ -3785,6 +3789,10 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, > > return; > > + out_cleanup_ns_from_list: > + down_write(&ctrl->namespaces_rwsem); > + list_del_init(&ns->list); > + up_write(&ctrl->namespaces_rwsem); This also needs to do a nvme_put_ctrl.