[PATCH v4 3/4] floppy: address add_disk() error handling on probe

[Christoph Hellwig]

On Wed, Nov 03, 2021 at 11:12:57AM -0700, Luis Chamberlain wrote:
> We need to cleanup resources on the probe() callback registered
> with __register_blkdev(), now that add_disk() error handling is
> supported. Address this.

Same comment as for ataflop.