linux-kernel - [PATCH v4 02/14] MFD: twl4030-audio: Convert to use devm

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Message-Id: <1347273992-9107-3-git-send-email-peter.ujfalusi@ti.com>
Date:	Mon, 10 Sep 2012 13:46:20 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, Tony Lindgren <tony@...mide.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>
Cc:	Tero Kristo <t-kristo@...com>, alsa-devel@...a-project.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org,
	Benoit Cousson <b-cousson@...com>, linux-kernel@...r.kernel.org
Subject: [PATCH v4 02/14] MFD: twl4030-audio: Convert to use devm_kzalloc

To clean up the module probe and remove functions.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
 drivers/mfd/twl4030-audio.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c
index ac04b4f..efa2d42 100644
--- a/drivers/mfd/twl4030-audio.c
+++ b/drivers/mfd/twl4030-audio.c
@@ -188,7 +188,8 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev)
 	twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
 					val, TWL4030_REG_APLL_CTL);
 
-	audio = kzalloc(sizeof(struct twl4030_audio), GFP_KERNEL);
+	audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio),
+			     GFP_KERNEL);
 	if (!audio)
 		return -ENOMEM;
 
@@ -229,22 +230,18 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev)
 		ret = -ENODEV;
 	}
 
-	if (!ret)
-		return 0;
+	if (ret) {
+		platform_set_drvdata(pdev, NULL);
+		twl4030_audio_dev = NULL;
+	}
 
-	platform_set_drvdata(pdev, NULL);
-	kfree(audio);
-	twl4030_audio_dev = NULL;
 	return ret;
 }
 
 static int __devexit twl4030_audio_remove(struct platform_device *pdev)
 {
-	struct twl4030_audio *audio = platform_get_drvdata(pdev);
-
 	mfd_remove_devices(&pdev->dev);
 	platform_set_drvdata(pdev, NULL);
-	kfree(audio);
 	twl4030_audio_dev = NULL;
 
 	return 0;
-- 
1.7.12

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