[PATCH 31/58] move omap_hdq's probe function to .devinit.text

Uwe Kleine-König
2009-03-27T23:49:56Z

A pointer to omap_hdq_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: Stanley.Miao <stanley.miao@windriver.com>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
---
drivers/w1/masters/omap_hdq.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index c973889..6a5dd2e 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -72,7 +72,7 @@ struct hdq_data {
int init_trans;
};

-static int __init omap_hdq_probe(struct platform_device *pdev);
+static int __devinit omap_hdq_probe(struct platform_device *pdev);
static int omap_hdq_remove(struct platform_device *pdev);

static struct platform_driver omap_hdq_driver = {
@@ -558,7 +558,7 @@ static void omap_w1_write_byte(void *_hdq, u8 byte)
return;
}

-static int __init omap_hdq_probe(struct platform_device *pdev)
+static int __devinit omap_hdq_probe(struct platform_device *pdev)
{
struct hdq_data *hdq_data;
struct resource *res;
--
1.6.2