linux-kernel - [PATCH 30/58] move mailbox's probe function to .devinit.text

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Message-Id: <1238196439-16535-30-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 28 Mar 2009 00:26:51 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Hiroshi DOYU <Hiroshi.DOYU@...ia.com>,
	Tony Lindgren <tony@...mide.com>,
	Juha Yrjola <juha.yrjola@...idboot.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: [PATCH 30/58] move mailbox's probe function to .devinit.text

A pointer to omap2_mbox_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: Hiroshi DOYU <Hiroshi.DOYU@...ia.com>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Juha Yrjola <juha.yrjola@...idboot.com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 arch/arm/mach-omap2/mailbox.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 32b7af3..726876c 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -251,7 +251,7 @@ static struct omap_mbox mbox_iva_info = {
 	.priv	= &omap2_mbox_iva_priv,
 };
 
-static int __init omap2_mbox_probe(struct platform_device *pdev)
+static int __devinit omap2_mbox_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	int ret = 0;
-- 
1.6.2

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