linux-kernel - [PATCH] ASoC: xlnx: Use devm_platform_ioremap_resource() in xlnx_formatter_pcm

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Message-ID: <8f7cf483-6ab3-d00f-5606-863e9f5b31fc@web.de>
Date:   Thu, 19 Sep 2019 17:38:04 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Maruthi Srinivas Bayyavarapu 
        <maruthi.srinivas.bayyavarapu@...inx.com>,
        Michal Simek <michal.simek@...inx.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Takashi Iwai <tiwai@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] ASoC: xlnx: Use devm_platform_ioremap_resource() in
 xlnx_formatter_pcm_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 19 Sep 2019 17:27:57 +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>
---
 sound/soc/xilinx/xlnx_formatter_pcm.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/sound/soc/xilinx/xlnx_formatter_pcm.c b/sound/soc/xilinx/xlnx_formatter_pcm.c
index 48970efe7838..fb652e73abeb 100644
--- a/sound/soc/xilinx/xlnx_formatter_pcm.c
+++ b/sound/soc/xilinx/xlnx_formatter_pcm.c
@@ -564,7 +564,6 @@ static int xlnx_formatter_pcm_probe(struct platform_device *pdev)
 	int ret;
 	u32 val;
 	struct xlnx_pcm_drv_data *aud_drv_data;
-	struct resource *res;
 	struct device *dev = &pdev->dev;

 	aud_drv_data = devm_kzalloc(dev, sizeof(*aud_drv_data), GFP_KERNEL);
@@ -584,13 +583,7 @@ static int xlnx_formatter_pcm_probe(struct platform_device *pdev)
 		return ret;
 	}

-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "audio formatter node:addr to resource failed\n");
-		ret = -ENXIO;
-		goto clk_err;
-	}
-	aud_drv_data->mmio = devm_ioremap_resource(dev, res);
+	aud_drv_data->mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(aud_drv_data->mmio)) {
 		dev_err(dev, "audio formatter ioremap failed\n");
 		ret = PTR_ERR(aud_drv_data->mmio);
--
2.23.0