[PATCH v2 08/13] z2ram: add error handling support for add_disk()

[Christoph Hellwig]

On Wed, Nov 03, 2021 at 05:21:52AM -0700, Luis Chamberlain wrote:
> We never checked for errors on add_disk() as this function
> returned void. Now that this is fixed, use the shiny new
> error handling. Only the disk is cleaned up inside
> z2ram_register_disk() as the caller deals with the rest.

Looks good,

Reviewed-by: Christoph Hellwig <hch at lst.de>