>> From: Wang Qing <wangq...@vivo.com>
>>
>> of_find_device_by_node() takes a reference to the embedded struct device
>> which needs to be dropped when error return.
>
>...
>
>> data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
>> if (!data) {
>> + put_device(&cpu_pdev->dev);
>
>If it's of_find_device_by_node() you need an of_node_put() since you're
>dropping a reference on the OF node.
>
Label fail will drop a reference on the OF node.
Also, put_device() is called later except this branch,
we just need to add put_device() here.
Thanks,
Qing
>> ret = -ENOMEM;
>> goto fail;
