[PATCH 17/58] move h1940-leds's probe function to .devinit.text

Uwe Kleine-König
2009-03-27T23:30:50Z

A pointer to h1940leds_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: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Márton Németh <nm127@freemail.hu>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
drivers/leds/leds-h1940.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/leds/leds-h1940.c b/drivers/leds/leds-h1940.c
index 11b77a7..1aa46a3 100644
--- a/drivers/leds/leds-h1940.c
+++ b/drivers/leds/leds-h1940.c
@@ -104,7 +104,7 @@ static struct led_classdev h1940_blueled = {
.default_trigger = "h1940-bluetooth",
};

-static int __init h1940leds_probe(struct platform_device *pdev)
+static int __devinit h1940leds_probe(struct platform_device *pdev)
{
int ret;

--
1.6.2