linux-kernel - Re: [PATCH 3/8] gpio: exar: Allocate resources on behalf of the platform device

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Message-ID: <CAHp75VesZMm3536KOwAm-f1ttwzMa+42aQz7dWCXkN3Rxz==mQ@mail.gmail.com>
Date:   Sat, 13 May 2017 16:26:50 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>,
        Sascha Weisenberger <sascha.weisenberger@...mens.com>
Subject: Re: [PATCH 3/8] gpio: exar: Allocate resources on behalf of the
 platform device

On Sat, May 13, 2017 at 10:29 AM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
> Do not allocate resources on behalf of the parent device but on our own.
> Otherwise, cleanup does not properly work if gpio-exar is removed but
> not the parent device.

This sounds to me like a good catch.
FWIW:
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

>
> Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
> ---
>  drivers/gpio/gpio-exar.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
> index 0a2085faf271..9138ee087c5d 100644
> --- a/drivers/gpio/gpio-exar.c
> +++ b/drivers/gpio/gpio-exar.c
> @@ -139,7 +139,7 @@ static int gpio_exar_probe(struct platform_device *pdev)
>         if (!p)
>                 return -ENOMEM;
>
> -       exar_gpio = devm_kzalloc(&pcidev->dev, sizeof(*exar_gpio), GFP_KERNEL);
> +       exar_gpio = devm_kzalloc(&pdev->dev, sizeof(*exar_gpio), GFP_KERNEL);
>         if (!exar_gpio)
>                 return -ENOMEM;
>
> @@ -160,7 +160,7 @@ static int gpio_exar_probe(struct platform_device *pdev)
>         exar_gpio->regs = p;
>         exar_gpio->index = index;
>
> -       ret = devm_gpiochip_add_data(&pcidev->dev,
> +       ret = devm_gpiochip_add_data(&pdev->dev,
>                                      &exar_gpio->gpio_chip, exar_gpio);
>         if (ret)
>                 goto err_destroy;
> --
> 2.12.0
>



-- 
With Best Regards,
Andy Shevchenko