Thanks for your reply. I'll check the patch and modify it by a better way.

Thanks again, Kunwu

On 2023/12/4 20:38, Mark Brown wrote:

On Thu, Nov 23, 2023 at 11:54:24PM +0800, Kunwu Chan wrote:

...

devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

In addition to the issues others mentioned this doesn't apply against current code, please check and resend.