null_blk: add error handling support for add_disk()

We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling. The actual cleanup in case of error is
already handled by the caller of null_gendisk_register().

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20210818144542.19305-12-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Luis Chamberlain 2021-08-18 16:45:42 +02:00 committed by Jens Axboe
parent dbb301f91f
commit 10e7123d55

View File

@ -1717,8 +1717,7 @@ static int null_gendisk_register(struct nullb *nullb)
return ret;
}
add_disk(disk);
return 0;
return add_disk(disk);
}
static int null_init_tag_set(struct nullb *nullb, struct blk_mq_tag_set *set)