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nvme: add error handling support for add_disk()

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We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Luis Chamberlain 2021-08-30 14:25:33 -07:00 committed by Christoph Hellwig
parent 041bd1a1fc
commit ab3994f6ef
1 changed files with 8 additions and 1 deletions
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9
drivers/nvme/host/core.c
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@ -3798,7 +3798,9 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
nvme_get_ctrl(ctrl);
device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups);
if (device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups))
goto out_cleanup_ns_from_list;
if (!nvme_ns_head_multipath(ns->head))
nvme_add_ns_cdev(ns);
@ -3808,6 +3810,11 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
return;
out_cleanup_ns_from_list:
nvme_put_ctrl(ctrl);
down_write(&ctrl->namespaces_rwsem);
list_del_init(&ns->list);
up_write(&ctrl->namespaces_rwsem);
out_unlink_ns:
mutex_lock(&ctrl->subsys->lock);
list_del_rcu(&ns->siblings);