diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/null_blk.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 895867a8a783..91e1de898daf 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -34,6 +34,7 @@ struct nullb { unsigned int index; struct request_queue *q; struct gendisk *disk; + struct nvm_dev *ndev; struct blk_mq_tag_set tag_set; struct hrtimer timer; unsigned int queue_depth; @@ -550,12 +551,29 @@ static struct nvm_dev_ops null_lnvm_dev_ops = { static int null_nvm_register(struct nullb *nullb) { - return nvm_register(nullb->q, nullb->disk_name, &null_lnvm_dev_ops); + struct nvm_dev *dev; + int rv; + + dev = nvm_alloc_dev(0); + if (!dev) + return -ENOMEM; + + dev->q = nullb->q; + memcpy(dev->name, nullb->disk_name, DISK_NAME_LEN); + dev->ops = &null_lnvm_dev_ops; + + rv = nvm_register(dev); + if (rv) { + kfree(dev); + return rv; + } + nullb->ndev = dev; + return 0; } static void null_nvm_unregister(struct nullb *nullb) { - nvm_unregister(nullb->disk_name); + nvm_unregister(nullb->ndev); } #else static int null_nvm_register(struct nullb *nullb) |