Re: [PATCH] gpio: gpio-altera-a10sr: remove platform_set_drvdata() + cleanup probe

From: Bartosz Golaszewski
Date: Fri May 21 2021 - 09:37:31 EST


On Fri, May 14, 2021 at 11:20 AM Alexandru Ardelean
<aardelean@xxxxxxxxxxx> 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@xxxxxxxxxxx>
> ---
> drivers/gpio/gpio-altera-a10sr.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/drivers/gpio/gpio-altera-a10sr.c b/drivers/gpio/gpio-altera-a10sr.c
> index b5917c48e4dc..6af51feda06f 100644
> --- a/drivers/gpio/gpio-altera-a10sr.c
> +++ b/drivers/gpio/gpio-altera-a10sr.c
> @@ -78,7 +78,6 @@ static const struct gpio_chip altr_a10sr_gc = {
> static int altr_a10sr_gpio_probe(struct platform_device *pdev)
> {
> struct altr_a10sr_gpio *gpio;
> - int ret;
> struct altr_a10sr *a10sr = dev_get_drvdata(pdev->dev.parent);
>
> gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
> @@ -91,15 +90,7 @@ static int altr_a10sr_gpio_probe(struct platform_device *pdev)
> gpio->gp.parent = pdev->dev.parent;
> gpio->gp.of_node = pdev->dev.of_node;
>
> - ret = devm_gpiochip_add_data(&pdev->dev, &gpio->gp, gpio);
> - if (ret < 0) {
> - dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
> - return ret;
> - }
> -
> - platform_set_drvdata(pdev, gpio);
> -
> - return 0;
> + return devm_gpiochip_add_data(&pdev->dev, &gpio->gp, gpio);
> }
>
> static const struct of_device_id altr_a10sr_gpio_of_match[] = {
> --
> 2.31.1
>

Applied, thanks!
Bartosz