linux-kernel - [PATCH 06/58] move bf54x-lq043's probe function to .devinit.text

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Message-Id: <1238196439-16535-6-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Sat, 28 Mar 2009 00:26:27 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Bryan Wu <cooloney@...nel.org>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Mike Frysinger <vapier.adi@...il.com>,
	Krzysztof Helt <krzysztof.h1@...pl>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Antonino Daplas <adaplas@....net>
Subject: [PATCH 06/58] move bf54x-lq043's probe function to .devinit.text

A pointer to bfin_bf54x_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: Bryan Wu <cooloney@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Michael Hennerich <michael.hennerich@...log.com>
Cc: Mike Frysinger <vapier.adi@...il.com>
Cc: Krzysztof Helt <krzysztof.h1@...pl>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Antonino Daplas <adaplas@....net>
---
 drivers/video/bf54x-lq043fb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 37e60b1..0a848c0 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -530,7 +530,7 @@ static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __init bfin_bf54x_probe(struct platform_device *pdev)
+static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 {
 	struct bfin_bf54xfb_info *info;
 	struct fb_info *fbinfo;
-- 
1.6.2

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