linux-kernel - [PATCH] rtc: goldfish: Use devm_platform_ioremap_resource() in goldfish_rtc

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Date:   Sat, 21 Sep 2019 12:48:25 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-rtc@...r.kernel.org, Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Miodrag Dinic <miodrag.dinic@...s.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Aleksandar Markovic <aleksandar.markovic@...tec.com>,
        Goran Ferenc <goran.ferenc@...tec.com>
Subject: [PATCH] rtc: goldfish: Use devm_platform_ioremap_resource() in
 goldfish_rtc_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 21 Sep 2019 12:20:11 +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/rtc/rtc-goldfish.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c
index 1a3420ee6a4d..cb6b0ad7ec3f 100644
--- a/drivers/rtc/rtc-goldfish.c
+++ b/drivers/rtc/rtc-goldfish.c
@@ -165,7 +165,6 @@ static const struct rtc_class_ops goldfish_rtc_ops = {
 static int goldfish_rtc_probe(struct platform_device *pdev)
 {
 	struct goldfish_rtc *rtcdrv;
-	struct resource *r;
 	int err;

 	rtcdrv = devm_kzalloc(&pdev->dev, sizeof(*rtcdrv), GFP_KERNEL);
@@ -173,12 +172,7 @@ static int goldfish_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;

 	platform_set_drvdata(pdev, rtcdrv);
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r)
-		return -ENODEV;
-
-	rtcdrv->base = devm_ioremap_resource(&pdev->dev, r);
+	rtcdrv->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rtcdrv->base))
 		return -ENODEV;

--
2.23.0