diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 4b182ac15687..faa7feebb609 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2856,6 +2856,10 @@ static ssize_t nvme_sysfs_delete(struct device *dev, { struct nvme_ctrl *ctrl = dev_get_drvdata(dev); + /* Can't delete non-created controllers */ + if (!ctrl->created) + return -EBUSY; + if (device_remove_file_self(dev, attr)) nvme_delete_ctrl_sync(ctrl); return count; @@ -3576,6 +3580,7 @@ void nvme_start_ctrl(struct nvme_ctrl *ctrl) queue_work(nvme_wq, &ctrl->async_event_work); nvme_start_queues(ctrl); } + ctrl->created = true; } EXPORT_SYMBOL_GPL(nvme_start_ctrl); diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 31c1496f938f..a70b997060e6 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -206,6 +206,7 @@ struct nvme_ctrl { struct nvme_command ka_cmd; struct work_struct fw_act_work; unsigned long events; + bool created; #ifdef CONFIG_NVME_MULTIPATH /* asymmetric namespace access: */