[dm-devel] [PATCH 08/10] dm: add add_disk() error handling

[Luis Chamberlain]

On Tue, Aug 24, 2021 at 07:21:30AM +0100, Christoph Hellwig wrote:
> On Mon, Aug 23, 2021 at 01:29:28PM -0700, Luis Chamberlain wrote:
> > -	add_disk(md->disk);
> > +	r = add_disk(md->disk);
> > +	if (r)
> > +		goto out_cleanup_disk;
> >  
> >  	r = dm_sysfs_init(md);
> > -	if (r) {
> > -		del_gendisk(md->disk);
> > -		return r;
> > -	}
> > +	if (r)
> > +		goto out_del_gendisk;
> >  	md->type = type;
> >  	return 0;
> > +
> > +out_cleanup_disk:
> > +	blk_cleanup_disk(md->disk);
> > +out_del_gendisk:
> > +	del_gendisk(md->disk);
> > +	return r;
> 
> I think the add_disk should just return r.  If you look at the
> callers they eventualy end up in dm_table_destroy, which does
> this cleanup.

I don't see it. What part of dm_table_destroy() does this?

  Luis