linux-kernel - [PATCH 1/2] net: dsa: vsc73xx: Use devm_platform_ioremap_resource() in vsc73xx_platform

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Message-ID: <dbc78014-6ed4-5080-8208-0a5930a3bf6e@web.de>
Date:   Fri, 20 Sep 2019 16:28:00 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Pawel Dembicki <paweldembicki@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/2] net: dsa: vsc73xx: Use devm_platform_ioremap_resource()
 in vsc73xx_platform_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 20 Sep 2019 15:23:39 +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>
---
 drivers/net/dsa/vitesse-vsc73xx-platform.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/net/dsa/vitesse-vsc73xx-platform.c b/drivers/net/dsa/vitesse-vsc73xx-platform.c
index 0541785f9fee..a3bbf9bd1bf1 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-platform.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-platform.c
@@ -89,7 +89,6 @@ static int vsc73xx_platform_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct vsc73xx_platform *vsc_platform;
-	struct resource *res = NULL;
 	int ret;

 	vsc_platform = devm_kzalloc(dev, sizeof(*vsc_platform), GFP_KERNEL);
@@ -101,16 +100,7 @@ static int vsc73xx_platform_probe(struct platform_device *pdev)
 	vsc_platform->vsc.dev = dev;
 	vsc_platform->vsc.priv = vsc_platform;
 	vsc_platform->vsc.ops = &vsc73xx_platform_ops;
-
-	/* obtain I/O memory space */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "cannot obtain I/O memory space\n");
-		ret = -ENXIO;
-		return ret;
-	}
-
-	vsc_platform->base_addr = devm_ioremap_resource(&pdev->dev, res);
+	vsc_platform->base_addr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(vsc_platform->base_addr)) {
 		dev_err(&pdev->dev, "cannot request I/O memory space\n");
 		ret = -ENXIO;
--
2.23.0