On Tue, Dec 07, 2021 at 04:56:58AM -0800, Qing Wang wrote:
> From: Wang Qing <wangqing@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.