Re: [PATCH 2/4] iio: light: stk3310: Implement vdd supply and power it off during suspend

[Andy Shevchenko]

On Thu, Apr 18, 2024 at 8:50 PM Aren <aren@xxxxxxxxxxxxxxxxx> wrote:
> On Thu, Apr 18, 2024 at 06:56:09PM +0300, Andy Shevchenko wrote:
> > On Thu, Apr 18, 2024 at 6:06 PM Aren <aren@xxxxxxxxxxxxxxxxx> wrote:
> > > On Mon, Apr 15, 2024 at 05:04:53PM +0300, Andy Shevchenko wrote:
> > > > On Sun, Apr 14, 2024 at 8:57 PM Aren Moynihan <aren@xxxxxxxxxxxxxxxxx> wrote:

..

> > > > I forgot to check the order of freeing resources, be sure you have no
> > > > devm_*() releases happening before this call.
> > >
> > > If I understand what you're saying, this should be fine. The driver just
> > > uses devm to clean up acquired resources after remove is called. Or am I
> > > missing something and resources could be freed before calling
> > > stk3310_remove?
> >
> > I'm not objecting to that. The point here is that the resources should
> > be freed in the reversed order. devm-allocated resources are deferred
> > to be freed after the explicit driver ->remove() callback. At the end
> > it should not interleave with each other, i.o.w. it should be
> > probe: devm followed by non-devm
> > remove: non-devm only.
>
> I think what you're describing is already the case, with the exception
> of parts of the probe function not changed in this patch mixing
> acquiring resources through devm with configuring the device.

Okay, then we are fine!

> I hope I'm not being dense, thanks for the clarification

-- 
With Best Regards,
Andy Shevchenko