linux-kernel - Re: [PATCH next] gpiolib: check for parent device in devprop_gpiochip_set

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Date:   Wed, 16 Sep 2020 16:47:24 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Kent Gibson <warthog618@...il.com>,
        Anders Roxell <anders.roxell@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH next] gpiolib: check for parent device in devprop_gpiochip_set_names()

On Wed, Sep 16, 2020 at 4:29 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Wed, Sep 16, 2020 at 03:43:27PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >
> > It's possible for a GPIO chip to not have a parent device (whose
> > properties we inspect for 'gpio-line-names'). In this case we should
> > simply return from devprop_gpiochip_set_names(). Add an appropriate
> > check for this use-case.
>
> Ah, nice!
> Can we also add a small comment in the code, b/c w/o it I would stumble over
> and eager to remove looks-as-unneeded check?
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Sure, I'll make a v2 then.

Bart