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null_blk: do not del gendisk with lightnvm

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The gendisk structure has not been initialized when using lightnvm.
Make sure to not delete it upon exit. Also make sure that we use the
appropriate disk_name at unregistration.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Matias Bjørling 2015-11-19 12:50:10 +01:00 • committed by Jens Axboe
parent 5b40db9909
commit 54514aa465
1 changed files with 5 additions and 3 deletions
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8
drivers/block/null_blk.c
View file

@ -435,12 +435,14 @@ static void null_del_dev(struct nullb *nullb)
list_del_init(&nullb->list);
if (use_lightnvm)
nvm_unregister(nullb->disk->disk_name);
del_gendisk(nullb->disk);
nvm_unregister(nullb->disk_name);
else
del_gendisk(nullb->disk);
blk_cleanup_queue(nullb->q);
if (queue_mode == NULL_Q_MQ)
blk_mq_free_tag_set(&nullb->tag_set);
put_disk(nullb->disk);
if (!use_lightnvm)
put_disk(nullb->disk);
cleanup_queues(nullb);
kfree(nullb);
}