Re: [PATCH 5/8] ata: sata_rcar: Convert to devm_platform_ioremap_resource()

Geert Uytterhoeven
2023-07-06T13:06:07Z

Hi Yangtao,

On Thu, Jul 6, 2023 at 2:44 PM Yangtao Li <frank.li@vivo.com> wrote:
> Use devm_platform_ioremap_resource() to simplify code.
>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Thanks for your patch!

> --- a/drivers/ata/sata_rcar.c
> +++ b/drivers/ata/sata_rcar.c
> @@ -861,15 +861,11 @@ static int sata_rcar_probe(struct platform_device *pdev)
> struct device *dev = &pdev->dev;
> struct ata_host *host;
> struct sata_rcar_priv *priv;
> - struct resource *mem;
> - int irq;
> - int ret = 0;
> + int irq, ret;
>
> irq = platform_get_irq(pdev, 0);
> if (irq < 0)
> return irq;
> - if (!irq)
> - return -EINVAL;

Why this change?
It is not documented in the patch description.

>
> priv = devm_kzalloc(dev, sizeof(struct sata_rcar_priv), GFP_KERNEL);
> if (!priv)
> @@ -890,8 +886,7 @@ static int sata_rcar_probe(struct platform_device *pdev)
>
> host->private_data = priv;
>
> - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - priv->base = devm_ioremap_resource(dev, mem);
> + priv->base = devm_platform_ioremap_resource(pdev, 0);
> if (IS_ERR(priv->base)) {
> ret = PTR_ERR(priv->base);
> goto err_pm_put;

The rest LGTM.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds