Re: [PATCH] pinctrl: check ops->pin_config_set in pinconf_set_config()

From: Linus Walleij
Date: Mon Aug 07 2017 - 09:22:00 EST


On Fri, Aug 4, 2017 at 4:59 AM, Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:

> pinconf_set_config() is called by pinctrl_gpio_set_config().
> If a GPIO driver is backed by a pinctrl driver and it does not
> support .pin_config_set() hook, it causes NULL pointer dereference.
>
> Fixes: 15381bc7c7f5 ("pinctrl: Allow configuration of pins from gpiolib based drivers")
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>

Patcg applied with Mika's ACK.

Yours,
Linus Walleij