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

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Message-Id: <1247345591-22643-11-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 11 Jul 2009 22:52:39 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org
Cc:	David Woodhouse <David.Woodhouse@...el.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] move sh_flctl's probe function to .devinit.text

A pointer to flctl_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>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@...esas.com>
Cc: David Woodhouse <David.Woodhouse@...el.com>
Cc: Paul Mundt <lethal@...ux-sh.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/mtd/nand/sh_flctl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 2bc8966..1898423 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -769,7 +769,7 @@ static int flctl_chip_init_tail(struct mtd_info *mtd)
 	return 0;
 }
 
-static int __init flctl_probe(struct platform_device *pdev)
+static int __devinit flctl_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct sh_flctl *flctl;
-- 
1.6.3.1

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