[PATCH v2 04/13] nvdimm/blk: avoid calling del_gendisk() on early failures

[Christoph Hellwig]

On Wed, Nov 03, 2021 at 05:21:48AM -0700, Luis Chamberlain wrote:
> If nd_integrity_init() fails we'd get del_gendisk() called,
> but that's not correct as we should only call that if we're
> done with device_add_disk(). Fix this by providing unwinding
> prior to the devm call being registered and moving the devm
> registration to the very end.
> 
> This should fix calling del_gendisk() if nd_integrity_init()
> fails. I only spotted this issue through code inspection. It
> does not fix any real world bug.

Looks good,

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

Should this grow a Fixes tag for the commit adding the problem?