From: Yang Yingliang <yangyingliang@xxxxxxxxxx> Sent: Thursday, November 10, 2022 5:49 PM
>
> If device_register() returns error in vmbus_device_register(),
> the name allocated by dev_set_name() need be freed. As comment
s/need be freed/must be freed/
> of device_register() says, it should use put_device() to give
> up the reference in the error path. So fix this by calling
> put_device(), then the name can be freed in kobject_cleanup().
>
> Fixes: 09d50ff8a233 ("Staging: hv: make the Hyper-V virtual bus code build")
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> ---
> drivers/hv/vmbus_drv.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
> index 8b2e413bf19c..e592c481f7ae 100644
> --- a/drivers/hv/vmbus_drv.c
> +++ b/drivers/hv/vmbus_drv.c
> @@ -2082,6 +2082,7 @@ int vmbus_device_register(struct hv_device
> *child_device_obj)
> ret = device_register(&child_device_obj->device);
> if (ret) {
> pr_err("Unable to register child device\n");
> + put_device(&child_device_obj->device);
> return ret;
> }
>
> --
> 2.25.1
