linux-kernel - Re: [PATCH] gpio: gpiolib-devprop: Check chip->parent pointer before dereferencing

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Message-ID: <CACRpkdZdHRY0Zc9F+HYdZG+fHS-YgyPhAgXvOjK=UxKEHtUOfg@mail.gmail.com>
Date:   Tue, 25 Oct 2016 20:24:04 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Thor Thayer <tthayer@...nsource.altera.com>
Cc:     Alexandre Courbot <gnurou@...il.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpio: gpiolib-devprop: Check chip->parent pointer before dereferencing

On Tue, Oct 25, 2016 at 6:31 PM,  <tthayer@...nsource.altera.com> wrote:

> From: Thor Thayer <tthayer@...nsource.altera.com>
>
> Confirm the chip->parent is valid before dereferencing because
> the parent parameter is optional.
>
> Signed-off-by: Thor Thayer <tthayer@...nsource.altera.com>

I wish it wasn't. Not much to do about though.

Patch applied.

Yours,
Linus Walleij