On Mon, Aug 23, 2021 at 01:29:29PM -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.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>

Looks good:

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

and I think you can drop my signoff.  I added this when I planned
to send out with the original conversion, but dropped it for simpler
examples.