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

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Message-Id: <1247345591-22643-21-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 11 Jul 2009 22:52:49 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] move meth's probe function to .devinit.text

A pointer to meth_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: David S. Miller <davem@...emloft.net>
Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Christoph Lameter <cl@...ux-foundation.org>
Cc: Jeff Garzik <jgarzik@...hat.com>
Acked-by: Ralf Baechle <ralf@...ux-mips.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 drivers/net/meth.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/meth.c b/drivers/net/meth.c
index 5d04d94..0dddb02 100644
--- a/drivers/net/meth.c
+++ b/drivers/net/meth.c
@@ -784,7 +784,7 @@ static const struct net_device_ops meth_netdev_ops = {
 /*
  * The init function.
  */
-static int __init meth_probe(struct platform_device *pdev)
+static int __devinit meth_probe(struct platform_device *pdev)
 {
 	struct net_device *dev;
 	struct meth_private *priv;
-- 
1.6.3.1

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