linux-kernel - [PATCH 32/42] rtc: rtc-sa1100: remove unnecessary platform_set

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Message-id: <002e01ce47c8$84dfbdd0$8e9f3970$@samsung.com>
Date:	Fri, 03 May 2013 15:36:18 +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 32/42] rtc: rtc-sa1100: 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-sa1100.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 0060560..0f7adeb 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -249,7 +249,7 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(info->clk);
 	if (ret)
-		goto err_enable_clk;
+		return ret;
 	/*
 	 * According to the manual we should be able to let RTTR be zero
 	 * and then a default diviser for a 32.768KHz clock is used.
@@ -303,8 +303,6 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 	return 0;
 err_dev:
 	clk_disable_unprepare(info->clk);
-err_enable_clk:
-	platform_set_drvdata(pdev, NULL);
 	return ret;
 }
 
@@ -312,10 +310,8 @@ static int sa1100_rtc_remove(struct platform_device *pdev)
 {
 	struct sa1100_rtc *info = platform_get_drvdata(pdev);
 
-	if (info) {
+	if (info)
 		clk_disable_unprepare(info->clk);
-		platform_set_drvdata(pdev, NULL);
-	}
 
 	return 0;
 }
-- 
1.7.2.5


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