[PATCH 20/58] move hp680-bl's probe function to .devinit.text

Uwe Kleine-König
2009-03-27T23:43:22Z

A pointer to hp680bl_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@pengutronix.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Richard Purdie <rpurdie@linux.intel.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andriy Skulysh <askulysh@gmail.com>
Cc: Antonino Daplas <adaplas@pol.net>
---
drivers/video/backlight/hp680_bl.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
index 5be55a2..7fb4eef 100644
--- a/drivers/video/backlight/hp680_bl.c
+++ b/drivers/video/backlight/hp680_bl.c
@@ -103,7 +103,7 @@ static struct backlight_ops hp680bl_ops = {
.update_status = hp680bl_set_intensity,
};

-static int __init hp680bl_probe(struct platform_device *pdev)
+static int __devinit hp680bl_probe(struct platform_device *pdev)
{
struct backlight_device *bd;

--
1.6.2