linux-kernel - [PATCH V2 13/30] rtc: rtc-max77686: use devm_rtc_device

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Date:	Wed, 06 Mar 2013 16:51:47 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Andrew Morton' <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	'Alessandro Zummo' <a.zummo@...ertech.it>,
	rtc-linux@...glegroups.com, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH V2 13/30] rtc: rtc-max77686: use devm_rtc_device_register()

devm_rtc_device_register() is device managed and makes cleanup
paths simpler. Also, this patch uses devm_request_threaded_irq().

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
Changes since v1:
- used 'struct device *dev' as the first argument

 drivers/rtc/rtc-max77686.c |   15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index df66bab..5a12b32 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -538,8 +538,8 @@ static int max77686_rtc_probe(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 1);
 
-	info->rtc_dev = rtc_device_register("max77686-rtc", &pdev->dev,
-			&max77686_rtc_ops, THIS_MODULE);
+	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max77686-rtc",
+					&max77686_rtc_ops, THIS_MODULE);
 
 	if (IS_ERR(info->rtc_dev)) {
 		dev_info(&pdev->dev, "%s: fail\n", __func__);
@@ -555,8 +555,8 @@ static int max77686_rtc_probe(struct platform_device *pdev)
 		goto err_rtc;
 	info->virq = virq;
 
-	ret = request_threaded_irq(virq, NULL, max77686_rtc_alarm_irq, 0,
-			"rtc-alarm0", info);
+	ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
+				max77686_rtc_alarm_irq, 0, "rtc-alarm0", info);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
 			info->virq, ret);
@@ -569,13 +569,6 @@ err_rtc:
 
 static int max77686_rtc_remove(struct platform_device *pdev)
 {
-	struct max77686_rtc_info *info = platform_get_drvdata(pdev);
-
-	if (info) {
-		free_irq(info->virq, info);
-		rtc_device_unregister(info->rtc_dev);
-	}
-
 	return 0;
 }
 
-- 
1.7.2.5


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