On Tue, Nov 15 2022 at 9:10P -0500,
Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:
> From: Christoph Hellwig <hch@xxxxxx>
>
> Zero out the pointer to ->slave_dir so that the holder code doesn't
> incorrectly treat the object as alive when add_disk failed or after
> del_gendisk was called.
>
> Fixes: 89f871af1b26 ("dm: delay registering the gendisk")
> Reported-by: Yu Kuai <yukuai3@xxxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>
