linux-kernel - [PATCH] move h1940-leds's probe function to .devinit.text

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Message-Id: <1231799107-20136-20-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Mon, 12 Jan 2009 23:24:25 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] move h1940-leds's probe function to .devinit.text

A pointer to h1940leds_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>
---
 drivers/leds/leds-h1940.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/leds/leds-h1940.c b/drivers/leds/leds-h1940.c
index 11b77a7..1aa46a3 100644
--- a/drivers/leds/leds-h1940.c
+++ b/drivers/leds/leds-h1940.c
@@ -104,7 +104,7 @@ static struct led_classdev h1940_blueled = {
 	.default_trigger	= "h1940-bluetooth",
 };

-static int __init h1940leds_probe(struct platform_device *pdev)
+static int __devinit h1940leds_probe(struct platform_device *pdev)
 {
 	int ret;

-- 
1.5.6.5

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