linux-kernel - [PATCH 12/29] move hitfb's probe function to .devinit.text

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Message-Id: <1264278937-19675-12-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 23 Jan 2010 21:35:20 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, Paul Mundt <lethal@...ux-sh.org>,
	Andriy Skulysh <askulysh@...il.com>,
	Antonino Daplas <adaplas@....net>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 12/29] move hitfb's probe function to .devinit.text

A pointer to hitfb_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: Paul Mundt <lethal@...ux-sh.org>
Cc: Andriy Skulysh <askulysh@...il.com>
Cc: Antonino Daplas <adaplas@....net>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/video/hitfb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c
index 73c83a8..bf78779 100644
--- a/drivers/video/hitfb.c
+++ b/drivers/video/hitfb.c
@@ -325,7 +325,7 @@ static struct fb_ops hitfb_ops = {
 	.fb_imageblit	= cfb_imageblit,
 };
 
-static int __init hitfb_probe(struct platform_device *dev)
+static int __devinit hitfb_probe(struct platform_device *dev)
 {
 	unsigned short lcdclor, ldr3, ldvndr;
 	struct fb_info *info;
-- 
1.6.6

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