linux-kernel - [PATCH 55/58] move vfb's probe function to .devinit.text

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Message-Id: <1238196439-16535-55-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 28 Mar 2009 00:27:16 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Frans Pop <elendil@...net.nl>,
	Antonino Daplas <adaplas@...il.com>,
	Krzysztof Helt <krzysztof.h1@...pl>
Subject: [PATCH 55/58] move vfb's probe function to .devinit.text

A pointer to vfb_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: Frans Pop <elendil@...net.nl>
Cc: Antonino Daplas <adaplas@...il.com>
Cc: Krzysztof Helt <krzysztof.h1@...pl>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/video/vfb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index 93fe08d..5ee6bdb 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -476,7 +476,7 @@ static int __init vfb_setup(char *options)
      *  Initialisation
      */
 
-static int __init vfb_probe(struct platform_device *dev)
+static int __devinit vfb_probe(struct platform_device *dev)
 {
 	struct fb_info *info;
 	int retval = -ENOMEM;
-- 
1.6.2

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