Re: [PATCH v1 1/1] gpiolib: sysfs: Do unexport GPIO when user asks for it

From: Andy Shevchenko
Date: Mon Aug 14 2023 - 12:30:16 EST


On Mon, Aug 14, 2023 at 7:13 PM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
> On Mon, Aug 14, 2023 at 1:19 PM Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> >
> > It seems that sysfs interface implicitly relied on the gpiod_free()
> > to unexport the line. This is not good and prone to regressions.
> > Fix it by explicitly calling gpiod_unexport().
> >
>
> I wouldn't say it's prone to regressions, it's literally just that
> gpiod_free() should not deal with sysfs.
>
> How about that for commit message (I can change it when applying):
>
> It seems that sysfs interface implicitly relied on the gpiod_free()
> to unexport the line. This is logically incorrect as core gpiolib should
> not deal with sysfs so instead of restoring it, let's call gpiod_unexport()
> from sysfs code.

I'm fine with it, go ahead and apply with the change. Thank you!

--
With Best Regards,
Andy Shevchenko