linux-kernel - Re: [PATCH -next 11/13] hwrng: st - use devm_platform_ioremap

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Date:   Wed, 16 Oct 2019 11:29:15 +0000
From:   Patrice CHOTARD <patrice.chotard@...com>
To:     YueHaibing <yuehaibing@...wei.com>,
        "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "mpm@...enic.com" <mpm@...enic.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "ludovic.desroches@...rochip.com" <ludovic.desroches@...rochip.com>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "rjui@...adcom.com" <rjui@...adcom.com>,
        "sbranden@...adcom.com" <sbranden@...adcom.com>,
        "bcm-kernel-feedback-list@...adcom.com" 
        <bcm-kernel-feedback-list@...adcom.com>,
        "eric@...olt.net" <eric@...olt.net>,
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        "khilman@...libre.com" <khilman@...libre.com>,
        "dsaxena@...xity.net" <dsaxena@...xity.net>
CC:     "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rpi-kernel@...ts.infradead.org" 
        <linux-rpi-kernel@...ts.infradead.org>,
        "linux-samsung-soc@...r.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>,
        "linux-amlogic@...ts.infradead.org" 
        <linux-amlogic@...ts.infradead.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH -next 11/13] hwrng: st - use
 devm_platform_ioremap_resource() to simplify code

Hi

On 10/16/19 12:46 PM, YueHaibing wrote:
> Use devm_platform_ioremap_resource() to simplify the code a bit.
> This is detected by coccinelle.
>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/char/hw_random/st-rng.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c
> index 8634483..783c24e 100644
> --- a/drivers/char/hw_random/st-rng.c
> +++ b/drivers/char/hw_random/st-rng.c
> @@ -72,7 +72,6 @@ static int st_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
>  static int st_rng_probe(struct platform_device *pdev)
>  {
>  	struct st_rng_data *ddata;
> -	struct resource *res;
>  	struct clk *clk;
>  	void __iomem *base;
>  	int ret;
> @@ -81,8 +80,7 @@ static int st_rng_probe(struct platform_device *pdev)
>  	if (!ddata)
>  		return -ENOMEM;
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	base = devm_ioremap_resource(&pdev->dev, res);
> +	base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(base))
>  		return PTR_ERR(base);
>  

Reviewed-by: Patrice Chotard <patrice.chotard@...com>

Thanks