linux-kernel - Re: [PATCH v3 07/11] gpiolib: replace find_chip_by_name() with gpio_device_find_by

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Message-ID: <ZQf6zTsoZDFaIgHO@smile.fi.intel.com>
Date:   Mon, 18 Sep 2023 10:22:53 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v3 07/11] gpiolib: replace find_chip_by_name() with
 gpio_device_find_by_label()

On Fri, Sep 15, 2023 at 05:03:22PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Remove all remaining uses of find_chip_by_name() (and subsequently:
> gpiochip_find()) from gpiolib.c and use the new
> gpio_device_find_by_label() instead.

...

> -static int gpiochip_match_name(struct gpio_chip *gc, void *data)
> -{
> -	const char *name = data;
> -
> -	return !strcmp(gc->label, name);

And this we had no check for the label being NULL...

...

>  	for (p = &table->table[0]; p->key; p++) {
> +		struct gpio_device *gdev __free(gpio_device_put) = NULL;

> +		gdev = gpio_device_find_by_label(p->key);
> +		if (!gdev) {

I haven't got the fix for gpio-sim, shouldn't we have the same here, i.e.
definition being done together with the assignment when __free() is in use?

>  		}

-- 
With Best Regards,
Andy Shevchenko