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