Re: Suggestion on how to fix "memory leak in snd_ctl_led_register"

[慕冬亮]

On Thu, May 27, 2021 at 12:17 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Thu, May 27, 2021 at 10:49:22AM +0800, 慕冬亮 wrote:
> > Hi kernel developers,
> >
> > The root cause of "memory leak in snd_ctl_led_register" [1] is
> > unbalanced refcount operations in the device_add function [2]. This
> > refcount issue causes struct device_private allocated in
> > device_private_init unable to be deallocated, leading to memory leak.
> > The details are as follows:
>
> <snip>
>
> Great, can you just send a patch to us to resolve the issue?  That's the
> easiest way to resolve all of this.

As I said in the last, I think up some fixes, but they are not working
in my local testing. So I have no idea how to fix this bug. Then I ask
for help.

>
> thanks,
>
> greg k-h