Re: [PATCH v4 05/11] gpiolib: provide gpio_device_get_desc()

Andy Shevchenko
2023-10-02T09:46:59Z

On Wed, Sep 27, 2023 at 04:29:25PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> Getting the GPIO descriptor directly from the gpio_chip struct is
> dangerous as we don't take the reference to the underlying GPIO device.
> In order to start working towards removing gpiochip_get_desc(), let's
> provide a safer variant that works with an existing reference to struct
> gpio_device.

...

> +EXPORT_SYMBOL_GPL(gpiochip_get_desc);

> +struct gpio_desc *
> +gpio_device_get_desc(struct gpio_device *gdev, unsigned int hwnum)

I'm wondering if you move this to be upper than gpiochip_get_desc() and
diff will look better...

--
With Best Regards,
Andy Shevchenko