linux-kernel - [PATCH] move sharpsl-pm's probe function to .devinit.text

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Message-Id: <1247345591-22643-34-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 11 Jul 2009 22:53:02 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org
Cc:	Dmitry Baryshkov <dbaryshkov@...il.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] move sharpsl-pm's probe function to .devinit.text

A pointer to sharpsl_pm_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: Dmitry Baryshkov <dbaryshkov@...il.com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
Acked-by: Eric Miao <eric.miao@...vell.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 arch/arm/mach-pxa/sharpsl_pm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 2546c06..16a3873 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -899,7 +899,7 @@ static struct platform_suspend_ops sharpsl_pm_ops = {
 };
 #endif
 
-static int __init sharpsl_pm_probe(struct platform_device *pdev)
+static int __devinit sharpsl_pm_probe(struct platform_device *pdev)
 {
 	int ret;
 
-- 
1.6.3.1

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