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

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Message-Id: <20220418020147.2556925-1-lv.ruyi@zte.com.cn>
Date:   Mon, 18 Apr 2022 02:01:47 +0000
From:   cgel.zte@...il.com
To:     krzysztof.kozlowski@...aro.org
Cc:     linux-kernel@...r.kernel.org, Lv Ruyi <lv.ruyi@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] memory: Make use of the helper function devm_platform_ioremap_resource()

From: Lv Ruyi <lv.ruyi@....com.cn>

Use the devm_platform_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately.Make the
code simpler without functional changes.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
---
 drivers/memory/fsl-corenet-cf.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/memory/fsl-corenet-cf.c b/drivers/memory/fsl-corenet-cf.c
index f8ea592c9cb5..7fc9f57ae278 100644
--- a/drivers/memory/fsl-corenet-cf.c
+++ b/drivers/memory/fsl-corenet-cf.c
@@ -172,7 +172,6 @@ static irqreturn_t ccf_irq(int irq, void *dev_id)
 static int ccf_probe(struct platform_device *pdev)
 {
 	struct ccf_private *ccf;
-	struct resource *r;
 	const struct of_device_id *match;
 	u32 errinten;
 	int ret, irq;
@@ -185,13 +184,7 @@ static int ccf_probe(struct platform_device *pdev)
 	if (!ccf)
 		return -ENOMEM;
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r) {
-		dev_err(&pdev->dev, "%s: no mem resource\n", __func__);
-		return -ENXIO;
-	}
-
-	ccf->regs = devm_ioremap_resource(&pdev->dev, r);
+	ccf->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(ccf->regs))
 		return PTR_ERR(ccf->regs);
 
-- 
2.25.1