[PATCH] net: hns: use put_device() if device_register fail

From: Arvind Yadav
Date: Fri Mar 09 2018 - 05:42:13 EST


if device_register() returned an error! Always use put_device()
to give up the reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns/hnae.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c
index a051e58..0cf5ceb 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.c
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
@@ -422,8 +422,10 @@ int hnae_ae_register(struct hnae_ae_dev *hdev, struct module *owner)
hdev->cls_dev.release = hnae_release;
(void)dev_set_name(&hdev->cls_dev, "hnae%d", hdev->id);
ret = device_register(&hdev->cls_dev);
- if (ret)
+ if (ret) {
+ put_device(&hdev->cls_dev);
return ret;
+ }

__module_get(THIS_MODULE);

--
1.9.1