linux-kernel - [PATCH 35/58] move omap_wdt's probe function to .devinit.text

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Message-Id: <1238196439-16535-35-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 28 Mar 2009 00:26:56 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...hat.com>, Wim Van Sebroeck <wim@...ana.be>,
	Felipe Balbi <felipe.balbi@...ia.com>,
	"George G. Davis" <gdavis@...sta.com>
Subject: [PATCH 35/58] move omap_wdt's probe function to .devinit.text

A pointer to omap_wdt_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: Alan Cox <alan@...hat.com>
Cc: Wim Van Sebroeck <wim@...ana.be>
Cc: Felipe Balbi <felipe.balbi@...ia.com>
Cc: George G. Davis <gdavis@...sta.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/watchdog/omap_wdt.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 2f2ce74..c9c14dd 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -269,7 +269,7 @@ static const struct file_operations omap_wdt_fops = {
 	.release = omap_wdt_release,
 };
 
-static int __init omap_wdt_probe(struct platform_device *pdev)
+static int __devinit omap_wdt_probe(struct platform_device *pdev)
 {
 	struct resource *res, *mem;
 	struct omap_wdt_dev *wdev;
-- 
1.6.2

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