diff mbox series

[v2] ethernet: lantiq_xrx200: Use devm_platform_ioremap_resource() in xrx200_probe()

Message ID 43bed158-2af9-c518-2f97-a473c2b84eb7@web.de
State Deferred
Delegated to: David Miller
Headers show
Series [v2] ethernet: lantiq_xrx200: Use devm_platform_ioremap_resource() in xrx200_probe() | expand

Commit Message

Markus Elfring Sept. 20, 2019, 10:57 a.m. UTC
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 20 Sep 2019 11:48:33 +0200

Simplify this function implementation by using the wrapper function
“devm_platform_ioremap_resource” instead of calling the functions
“platform_get_resource” and “devm_ioremap_resource” directly.

* Thus reduce also a bit of exception handling code here.
* Delete the local variable “res”.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---

v2:
Further changes were requested by Radhey Shyam Pandey.

https://lore.kernel.org/r/CH2PR02MB700047AFFFE08FE5FD563541C78E0@CH2PR02MB7000.namprd02.prod.outlook.com/



* Updates for three modules were split into a separate patch for each driver.

* The commit description was adjusted.





 drivers/net/ethernet/lantiq_xrx200.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

--
2.23.0

Comments

Hauke Mehrtens Sept. 20, 2019, 7:23 p.m. UTC | #1
On 9/20/19 12:57 PM, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Fri, 20 Sep 2019 11:48:33 +0200
> 
> Simplify this function implementation by using the wrapper function
> “devm_platform_ioremap_resource” instead of calling the functions
> “platform_get_resource” and “devm_ioremap_resource” directly.
> 
> * Thus reduce also a bit of exception handling code here.
> * Delete the local variable “res”.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Acked-by: Hauke Mehrtens <hauke@hauke-m.de>

But this can also wait till kernel 5.5.

> ---
> 
> v2:
> Further changes were requested by Radhey Shyam Pandey.
> 
> https://lore.kernel.org/r/CH2PR02MB700047AFFFE08FE5FD563541C78E0@CH2PR02MB7000.namprd02.prod.outlook.com/
> 
> 
> 
> * Updates for three modules were split into a separate patch for each driver.
> 
> * The commit description was adjusted.
> 
> 
> 
> 
> 
>  drivers/net/ethernet/lantiq_xrx200.c | 11 +----------
>  1 file changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c
> index 900affbdcc0e..0a7ea45b9e59 100644
> --- a/drivers/net/ethernet/lantiq_xrx200.c
> +++ b/drivers/net/ethernet/lantiq_xrx200.c
> @@ -424,7 +424,6 @@ static int xrx200_probe(struct platform_device *pdev)
>  {
>  	struct device *dev = &pdev->dev;
>  	struct device_node *np = dev->of_node;
> -	struct resource *res;
>  	struct xrx200_priv *priv;
>  	struct net_device *net_dev;
>  	const u8 *mac;
> @@ -443,15 +442,7 @@ static int xrx200_probe(struct platform_device *pdev)
>  	SET_NETDEV_DEV(net_dev, dev);
>  	net_dev->min_mtu = ETH_ZLEN;
>  	net_dev->max_mtu = XRX200_DMA_DATA_LEN;
> -
> -	/* load the memory ranges */
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res) {
> -		dev_err(dev, "failed to get resources\n");
> -		return -ENOENT;
> -	}
> -
> -	priv->pmac_reg = devm_ioremap_resource(dev, res);
> +	priv->pmac_reg = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(priv->pmac_reg)) {
>  		dev_err(dev, "failed to request and remap io ranges\n");
>  		return PTR_ERR(priv->pmac_reg);
> --
> 2.23.0
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c
index 900affbdcc0e..0a7ea45b9e59 100644
--- a/drivers/net/ethernet/lantiq_xrx200.c
+++ b/drivers/net/ethernet/lantiq_xrx200.c
@@ -424,7 +424,6 @@  static int xrx200_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
-	struct resource *res;
 	struct xrx200_priv *priv;
 	struct net_device *net_dev;
 	const u8 *mac;
@@ -443,15 +442,7 @@  static int xrx200_probe(struct platform_device *pdev)
 	SET_NETDEV_DEV(net_dev, dev);
 	net_dev->min_mtu = ETH_ZLEN;
 	net_dev->max_mtu = XRX200_DMA_DATA_LEN;
-
-	/* load the memory ranges */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "failed to get resources\n");
-		return -ENOENT;
-	}
-
-	priv->pmac_reg = devm_ioremap_resource(dev, res);
+	priv->pmac_reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->pmac_reg)) {
 		dev_err(dev, "failed to request and remap io ranges\n");
 		return PTR_ERR(priv->pmac_reg);