From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Fri, 27 Mar 2009 23:26:58 +0000 (+0100)
Subject: [MTD] [NAND] move gen_nand's probe function to .devinit.text
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=9d63287a461c269edb39941744f4ff22223cf349;p=linux-2.6-omap-h63xx.git

[MTD] [NAND] move gen_nand's probe function to .devinit.text

A pointer to plat_nand_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@pengutronix.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Hamish Moffatt <hamish@cloud.net.au>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 75f9f4874ec..86e1d08eee0 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -30,7 +30,7 @@ struct plat_nand_data {
 /*
  * Probe for the NAND device.
  */
-static int __init plat_nand_probe(struct platform_device *pdev)
+static int __devinit plat_nand_probe(struct platform_device *pdev)
 {
 	struct platform_nand_data *pdata = pdev->dev.platform_data;
 	struct plat_nand_data *data;