Re: [PATCH] HID: intel-thc-hid: intel-quicki2c: fix autosuspend cleanup during teardown

[Jiri Kosina]

On Tue, 18 Aug 2026, Johan Hovold wrote:

> > quicki2c_probe() calls pm_runtime_use_autosuspend(), but
> > quicki2c_remove() does not call the matching
> > pm_runtime_dont_use_autosuspend() during teardown.
> > 
> > If the autosuspend delay is set to a negative value while autosuspend
> > is enabled, the runtime PM core increments usage_count to prevent
> > runtime suspend. Without calling pm_runtime_dont_use_autosuspend()
> > during teardown, this reference is not dropped.
> 
> I see that the HID ones have already been merged, but for the record:
> 
> As I've explained elsewhere, this is just misleading. There is no usage
> count leak here as the count is balanced whenever the user re-enables
> autosuspend through sysfs (by writing a non-negative timeout).
> 
> Drivers should clean up after themselves and disable autosuspend, but
> this is more of a clean up than a fix and should not be backported.

Hi Johan

unfrtounately the HID one was already merged as is.

Looking at this now again in more detail, I believe the code change is 
actually OK, but the changelog is misleading. Or am I missing something?

Thanks,

-- 
Jiri Kosina
SUSE Labs