linux-kernel - Re: [PATCH] gpio: gpio-tc3589x: emove platform_set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 24 May 2021 20:59:47 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Alexandru Ardelean <aardelean@...iqon.com>
Cc:     linux-gpio <linux-gpio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH] gpio: gpio-tc3589x: emove platform_set_drvdata() +
 cleanup probe

On Sat, May 15, 2021 at 12:58 PM Alexandru Ardelean
<aardelean@...iqon.com> wrote:
>
> The platform_set_drvdata() call is only useful if we need to retrieve back
> the private information.
> Since the driver doesn't do that, it's not useful to have it.
>
> If this is removed, we can also just do a direct return on
> devm_gpiochip_add_data(). We don't need to print that this call failed as
> there are other ways to log/see this during probe.
>
> Signed-off-by: Alexandru Ardelean <aardelean@...iqon.com>
> ---
>  drivers/gpio/gpio-tc3589x.c | 11 +----------
>  1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
> index 55b8dbd13d11..8d158492488f 100644
> --- a/drivers/gpio/gpio-tc3589x.c
> +++ b/drivers/gpio/gpio-tc3589x.c
> @@ -357,16 +357,7 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
>                 return ret;
>         }
>
> -       ret = devm_gpiochip_add_data(&pdev->dev, &tc3589x_gpio->chip,
> -                                    tc3589x_gpio);
> -       if (ret) {
> -               dev_err(&pdev->dev, "unable to add gpiochip: %d\n", ret);
> -               return ret;
> -       }
> -
> -       platform_set_drvdata(pdev, tc3589x_gpio);
> -
> -       return 0;
> +       return devm_gpiochip_add_data(&pdev->dev, &tc3589x_gpio->chip, tc3589x_gpio);
>  }
>
>  static struct platform_driver tc3589x_gpio_driver = {
> --
> 2.31.1
>


Applied, thanks!

Bart