Re: [RFC 2/6] block: add flag for add_disk() completion notation

Christoph Hellwig
2021-07-19T10:02:19Z

> {
> might_sleep();
>
> + if (!blk_disk_registered(disk))
> + return;
> +

Can't say I like this all that much. Drivers should keep some
basic sanity for their unregister path, and while blk_disk_registered
can be useful, it's uses should be kept at a minimum.