We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling. Reviewed-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx> --- drivers/nvme/host/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 8679a108f571..687d3be563a3 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3763,7 +3763,9 @@ 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); @@ -3773,6 +3775,11 @@ 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); -- 2.30.2
