diff mbox series

hwrng: iproc-rng200 - Use devm_platform_ioremap_resource() in iproc_rng200_probe()

Message ID 0ecb0679-0558-6cbe-af2f-6ee9122a4a7e@web.de (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series hwrng: iproc-rng200 - Use devm_platform_ioremap_resource() in iproc_rng200_probe() | expand

Commit Message

Markus Elfring Sept. 18, 2019, 7:19 a.m. UTC
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 18 Sep 2019 09:09:22 +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@users.sourceforge.net>
---
 drivers/char/hw_random/iproc-rng200.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

--
2.23.0

Comments

Ray Jui Sept. 18, 2019, 4:37 p.m. UTC | #1
On 9/18/19 12:19 AM, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Wed, 18 Sep 2019 09:09:22 +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@users.sourceforge.net>
> ---
>   drivers/char/hw_random/iproc-rng200.c | 9 +--------
>   1 file changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c
> index 92be1c0ab99f..899ff25f4f28 100644
> --- a/drivers/char/hw_random/iproc-rng200.c
> +++ b/drivers/char/hw_random/iproc-rng200.c
> @@ -181,7 +181,6 @@ static void iproc_rng200_cleanup(struct hwrng *rng)
>   static int iproc_rng200_probe(struct platform_device *pdev)
>   {
>   	struct iproc_rng200_dev *priv;
> -	struct resource *res;
>   	struct device *dev = &pdev->dev;
>   	int ret;
> 
> @@ -190,13 +189,7 @@ static int iproc_rng200_probe(struct platform_device *pdev)
>   		return -ENOMEM;
> 
>   	/* Map peripheral */
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res) {
> -		dev_err(dev, "failed to get rng resources\n");
> -		return -EINVAL;
> -	}
> -
> -	priv->base = devm_ioremap_resource(dev, res);
> +	priv->base = devm_platform_ioremap_resource(pdev, 0);
>   	if (IS_ERR(priv->base)) {
>   		dev_err(dev, "failed to remap rng regs\n");
>   		return PTR_ERR(priv->base);
> --
> 2.23.0
> 

Change looks good to me, thanks!

Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Florian Fainelli Sept. 18, 2019, 5:13 p.m. UTC | #2
On 9/18/19 12:19 AM, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Wed, 18 Sep 2019 09:09:22 +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@users.sourceforge.net>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Herbert Xu Oct. 4, 2019, 3:42 p.m. UTC | #3
On Wed, Sep 18, 2019 at 09:19:18AM +0200, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Wed, 18 Sep 2019 09:09:22 +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@users.sourceforge.net>
> ---
>  drivers/char/hw_random/iproc-rng200.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)

Patch applied.  Thanks.
diff mbox series

Patch

diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c
index 92be1c0ab99f..899ff25f4f28 100644
--- a/drivers/char/hw_random/iproc-rng200.c
+++ b/drivers/char/hw_random/iproc-rng200.c
@@ -181,7 +181,6 @@  static void iproc_rng200_cleanup(struct hwrng *rng)
 static int iproc_rng200_probe(struct platform_device *pdev)
 {
 	struct iproc_rng200_dev *priv;
-	struct resource *res;
 	struct device *dev = &pdev->dev;
 	int ret;

@@ -190,13 +189,7 @@  static int iproc_rng200_probe(struct platform_device *pdev)
 		return -ENOMEM;

 	/* Map peripheral */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "failed to get rng resources\n");
-		return -EINVAL;
-	}
-
-	priv->base = devm_ioremap_resource(dev, res);
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->base)) {
 		dev_err(dev, "failed to remap rng regs\n");
 		return PTR_ERR(priv->base);