linux-kernel - [PATCH] hw_random: ixp4xx: Make use of the helper function devm_platform_ioremap

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Message-ID: <20210907074042.1992-1-caihuoqing@baidu.com>
Date:   Tue, 7 Sep 2021 15:40:41 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Deepak Saxena <dsaxena@...xity.net>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] hw_random: ixp4xx: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/char/hw_random/ixp4xx-rng.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c
index 188854dd16a9..7df5e9f7519d 100644
--- a/drivers/char/hw_random/ixp4xx-rng.c
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -42,13 +42,11 @@ static int ixp4xx_rng_probe(struct platform_device *pdev)
 {
 	void __iomem * rng_base;
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 
 	if (!cpu_is_ixp46x()) /* includes IXP455 */
 		return -ENOSYS;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rng_base = devm_ioremap_resource(dev, res);
+	rng_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rng_base))
 		return PTR_ERR(rng_base);
 
-- 
2.25.1