net: hns3: add void before function which don't receive ret

Add void before function which don't receive ret to improve code
readability.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c

@@ -120,7 +120,7 @@ int hclge_devlink_init(struct hclge_dev *hdev)
 	hdev->devlink = devlink;
 
 	devlink_set_features(devlink, DEVLINK_F_RELOAD);
-	devlink_register(devlink);
+	(void)devlink_register(devlink);
 	return 0;
 }
 

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c

@@ -122,7 +122,7 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev)
 	hdev->devlink = devlink;
 
 	devlink_set_features(devlink, DEVLINK_F_RELOAD);
-	devlink_register(devlink);
+	(void)devlink_register(devlink);
 	return 0;
 }