[WATCHDOG] move platform probe and remove function to devinit and devexit

A pointer to probe and remove functions 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.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index 539b6f6..08e8a6a 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -206,7 +206,7 @@
 };
 
 
-static int mtx1_wdt_probe(struct platform_device *pdev)
+static int __devinit mtx1_wdt_probe(struct platform_device *pdev)
 {
 	int ret;
 
@@ -229,7 +229,7 @@
 	return 0;
 }
 
-static int mtx1_wdt_remove(struct platform_device *pdev)
+static int __devexit mtx1_wdt_remove(struct platform_device *pdev)
 {
 	/* FIXME: do we need to lock this test ? */
 	if (mtx1_wdt_device.queue) {
@@ -242,7 +242,7 @@
 
 static struct platform_driver mtx1_wdt = {
 	.probe = mtx1_wdt_probe,
-	.remove = mtx1_wdt_remove,
+	.remove = __devexit_p(mtx1_wdt_remove),
 	.driver.name = "mtx1-wdt",
 	.driver.owner = THIS_MODULE,
 };