linux-kernel - [PATCH] hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in aspeed_pwm_tacho

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Message-ID: <cd5bab7b-9333-2a43-bcf0-a47bbbe719eb@web.de>
Date:   Wed, 18 Sep 2019 10:20:09 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-hwmon@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, Andrew Jeffery <andrew@...id.au>,
        Günter Röck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>, Joel Stanley <joel@....id.au>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: [PATCH] hwmon: (aspeed-pwm-tacho) Use
 devm_platform_ioremap_resource() in aspeed_pwm_tacho_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 18 Sep 2019 10:12:31 +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/hwmon/aspeed-pwm-tacho.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index 40c489be62ea..33fb54845bf6 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -891,17 +891,12 @@ static int aspeed_pwm_tacho_probe(struct platform_device *pdev)
 	struct device_node *np, *child;
 	struct aspeed_pwm_tacho_data *priv;
 	void __iomem *regs;
-	struct resource *res;
 	struct device *hwmon;
 	struct clk *clk;
 	int ret;

 	np = dev->of_node;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENOENT;
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
--
2.23.0