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

[Luis Chamberlain]

On Wed, Nov 03, 2021 at 05:05:47PM +0100, Christoph Hellwig wrote:
> 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?

Given this driver is going to be removed, do we care? The only
reason I re-added the patch was Dan could not remove the driver
on time.

  Luis