linux-kernel - Re: [PATCH] pinctrl: don't put the reference to GPIO device in pinctrl_pins

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Date: Fri, 23 Feb 2024 13:34:31 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, David Arcari <darcari@...hat.com>
Subject: Re: [PATCH] pinctrl: don't put the reference to GPIO device in pinctrl_pins_show()

On Fri, Feb 23, 2024 at 1:30 PM Bartosz Golaszewski <brgl@...ev.pl> wrote:
>
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
>
> The call to gpiod_to_gpio_device() does not increase the reference count
> of the GPIO device struct so it must not be decreased. Remove the buggy
> __free() decorator.
>
> Reported-by: David Arcari <darcari@...hat.com>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  drivers/pinctrl/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
> index ee56856cb80c..bbcdece83bf4 100644
> --- a/drivers/pinctrl/core.c
> +++ b/drivers/pinctrl/core.c
> @@ -1644,7 +1644,7 @@ static int pinctrl_pins_show(struct seq_file *s, void *what)
>         const struct pinctrl_ops *ops = pctldev->desc->pctlops;
>         unsigned int i, pin;
>  #ifdef CONFIG_GPIOLIB
> -       struct gpio_device *gdev __free(gpio_device_put) = NULL;
> +       struct gpio_device *gdev = NULL;
>         struct pinctrl_gpio_range *range;
>         int gpio_num;
>  #endif
> --
> 2.40.1
>

Linus,

Disregard this one, it had no Fixes tag but I didn't press Ctrl-c in time.

Bart