linux-kernel - Re: [PATCH] media: rc: Use devm_platform_ioremap_resource() in tango_ir

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Date:   Wed, 18 Sep 2019 12:00:53 +0100
From:   Måns Rullgård <mans@...sr.com>
To:     Markus Elfring <Markus.Elfring@....de>
Cc:     linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Allison Randal <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: Re: [PATCH] media: rc: Use devm_platform_ioremap_resource() in tango_ir_probe()

Markus Elfring <Markus.Elfring@....de> writes:

> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Wed, 18 Sep 2019 12:30:18 +0200
>
> Simplify this function implementation by using a known wrapper function.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>

Acked-by: Mans Rullgard <mans@...sr.com>

> ---
>  drivers/media/rc/tango-ir.c | 14 ++------------
>  1 file changed, 2 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/media/rc/tango-ir.c b/drivers/media/rc/tango-ir.c
> index 451ec4e9dcfa..b8eb5bc4d9be 100644
> --- a/drivers/media/rc/tango-ir.c
> +++ b/drivers/media/rc/tango-ir.c
> @@ -157,20 +157,10 @@ static int tango_ir_probe(struct platform_device *pdev)
>  	struct device *dev = &pdev->dev;
>  	struct rc_dev *rc;
>  	struct tango_ir *ir;
> -	struct resource *rc5_res;
> -	struct resource *rc6_res;
>  	u64 clkrate, clkdiv;
>  	int irq, err;
>  	u32 val;
>
> -	rc5_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!rc5_res)
> -		return -EINVAL;
> -
> -	rc6_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> -	if (!rc6_res)
> -		return -EINVAL;
> -
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq <= 0)
>  		return -EINVAL;
> @@ -179,11 +169,11 @@ static int tango_ir_probe(struct platform_device *pdev)
>  	if (!ir)
>  		return -ENOMEM;
>
> -	ir->rc5_base = devm_ioremap_resource(dev, rc5_res);
> +	ir->rc5_base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(ir->rc5_base))
>  		return PTR_ERR(ir->rc5_base);
>
> -	ir->rc6_base = devm_ioremap_resource(dev, rc6_res);
> +	ir->rc6_base = devm_platform_ioremap_resource(pdev, 1);
>  	if (IS_ERR(ir->rc6_base))
>  		return PTR_ERR(ir->rc6_base);
>
> --
> 2.23.0
>

-- 
Måns Rullgård