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authorLuis Chamberlain <mcgrof@kernel.org>2021-08-31 00:25:33 +0300
committerChristoph Hellwig <hch@lst.de>2021-09-06 11:08:09 +0300
commitab3994f6efba95e0832dc9e68c088b2d7ae764b8 (patch)
tree184c4aab04d26482cb9431b082fd7bcfbb95527c /drivers/nvme
parent041bd1a1fc737cd73b0b8a9f74909191a8acc9fe (diff)
downloadlinux-ab3994f6efba95e0832dc9e68c088b2d7ae764b8.tar.xz
nvme: 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. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 4a3a33f5f11c..7efb31b87f37 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -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);