linux-kernel - [PATCH -next 04/13] hwrng: hisi - use devm_platform_ioremap

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Message-ID: <20191016104621.26056-5-yuehaibing@huawei.com>
Date:   Wed, 16 Oct 2019 18:46:12 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <herbert@...dor.apana.org.au>, <mpm@...enic.com>, <arnd@...db.de>,
        <gregkh@...uxfoundation.org>, <nicolas.ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <ludovic.desroches@...rochip.com>,
        <f.fainelli@...il.com>, <rjui@...adcom.com>,
        <sbranden@...adcom.com>, <bcm-kernel-feedback-list@...adcom.com>,
        <eric@...olt.net>, <wahrenst@....net>, <l.stelmach@...sung.com>,
        <kgene@...nel.org>, <krzk@...nel.org>, <khilman@...libre.com>,
        <dsaxena@...xity.net>, <patrice.chotard@...com>
CC:     <linux-crypto@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-rpi-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>,
        <linux-amlogic@...ts.infradead.org>,
        <linuxppc-dev@...ts.ozlabs.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next 04/13] hwrng: hisi - use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/char/hw_random/hisi-rng.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/char/hw_random/hisi-rng.c b/drivers/char/hw_random/hisi-rng.c
index c663d5d..6815e17 100644
--- a/drivers/char/hw_random/hisi-rng.c
+++ b/drivers/char/hw_random/hisi-rng.c
@@ -73,7 +73,6 @@ static int hisi_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 static int hisi_rng_probe(struct platform_device *pdev)
 {
 	struct hisi_rng *rng;
-	struct resource *res;
 	int ret;
 
 	rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
@@ -82,8 +81,7 @@ static int hisi_rng_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, rng);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rng->base = devm_ioremap_resource(&pdev->dev, res);
+	rng->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rng->base))
 		return PTR_ERR(rng->base);
 
-- 
2.7.4