[RFC 2/3] nvme: fix cdev name leak

[Keith Busch]

From: Keith Busch <kbusch at kernel.org>

If we fail to add the device, free the name allocated for it.

Signed-off-by: Keith Busch <kbusch at kernel.org>
---
 drivers/nvme/host/core.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 1bfd52eae2eeb..0f1cb6f418182 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4079,8 +4079,16 @@ static int nvme_add_ns_cdev(struct nvme_ns *ns)
 	if (ret)
 		return ret;
 
-	return nvme_cdev_add(&ns->cdev, &ns->cdev_device, &nvme_ns_chr_fops,
+	ret = nvme_cdev_add(&ns->cdev, &ns->cdev_device, &nvme_ns_chr_fops,
 			     ns->ctrl->ops->module);
+	if (ret)
+		goto out_free_name;
+
+	return 0;
+
+out_free_name:
+	kfree_const(ns->cdev_device.kobj.name);
+	return ret;
 }
 
 static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
-- 
2.34.1