nvdimm/blk: avoid calling del_gendisk() on early failures

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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.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20211103230437.1639990-4-mcgrof@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>

...

This commit is contained in:

Luis Chamberlain 2021-11-03 16:04:26 -07:00 • committed by Jens Axboe

parent 16be7974ff

commit b7421afcec

1 changed files with 12 additions and 5 deletions

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drivers/nvdimm/blk.c

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