linux-kernel - [PATCH] move mmci-omap-hs's probe function to .devinit.text

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Message-Id: <1247345591-22643-25-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 11 Jul 2009 22:52:53 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org
Cc:	Jean Pihet <jpihet@...sta.com>, Tony Lindgren <tony@...mide.com>,
	Pierre Ossman <drzeus@...eus.cx>, Andy Lowe <alowe@...sta.com>,
	Adrian Hunter <ext-adrian.hunter@...ia.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Madhusudhan Chikkature <madhu.cr@...com>
Subject: [PATCH] move mmci-omap-hs's probe function to .devinit.text

A pointer to omap_mmc_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: Jean Pihet <jpihet@...sta.com>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Pierre Ossman <drzeus@...eus.cx>
Cc: Andy Lowe <alowe@...sta.com>
Cc: Adrian Hunter <ext-adrian.hunter@...ia.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: David Brownell <dbrownell@...rs.sourceforge.net>
Cc: Madhusudhan Chikkature<madhu.cr@...com>
---
 drivers/mmc/host/omap_hsmmc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 1cf9cfb..dc9a430 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -967,7 +967,7 @@ static struct mmc_host_ops mmc_omap_ops = {
 	/* NYET -- enable_sdio_irq */
 };
 
-static int __init omap_mmc_probe(struct platform_device *pdev)
+static int __devinit omap_mmc_probe(struct platform_device *pdev)
 {
 	struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
 	struct mmc_host *mmc;
-- 
1.6.3.1

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