linux-kernel - [PATCH 31/42] rtc: rtc-s3c: remove unnecessary platform_set

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Message-id: <002d01ce47c8$798ae4a0$6ca0ade0$@samsung.com>
Date:	Fri, 03 May 2013 15:35:59 +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 31/42] rtc: rtc-s3c: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/rtc/rtc-s3c.c |    9 ++-------
 1 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 14040b2..4d38c6b 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -421,8 +421,6 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en)
 
 static int s3c_rtc_remove(struct platform_device *dev)
 {
-	platform_set_drvdata(dev, NULL);
-
 	s3c_rtc_setaie(&dev->dev, 0);
 
 	clk_unprepare(rtc_clk);
@@ -554,23 +552,20 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 			  0,  "s3c2410-rtc alarm", rtc);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ%d error %d\n", s3c_rtc_alarmno, ret);
-		goto err_alarm_irq;
+		goto err_nortc;
 	}
 
 	ret = devm_request_irq(&pdev->dev, s3c_rtc_tickno, s3c_rtc_tickirq,
 			  0,  "s3c2410-rtc tick", rtc);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ%d error %d\n", s3c_rtc_tickno, ret);
-		goto err_alarm_irq;
+		goto err_nortc;
 	}
 
 	clk_disable(rtc_clk);
 
 	return 0;
 
- err_alarm_irq:
-	platform_set_drvdata(pdev, NULL);
-
  err_nortc:
 	s3c_rtc_enable(pdev, 0);
 	clk_disable_unprepare(rtc_clk);
-- 
1.7.2.5


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