[PATCH 2/5] leds: make sure leds_class is initialized before triggers are registered

[Akinobu Mita]

If the led-class and usb-common modules are built into the kernel, the
usb-common module could be initialized earlier than the led-class module.

So when the ledtrig_usb_gadget and ledtrig_usb_host LED triggers are
registered by usb-common module, the leds_class could not be initialized
yet.

We are going to populate sub-directories, each representing an LED
trigger in /sys/class/triggers/, so leds_class needs to be initialized
before any LED triggers is registered.

This makes led-class initialize earlier then usb-common by changing
initcall group.

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Cc: Jacek Anaszewski <jacek.anaszewski@xxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Dan Murphy <dmurphy@xxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
---
 drivers/leds/led-class.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 8b5a1d1..7d85181 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -424,7 +424,7 @@ static void __exit leds_exit(void)
 	class_destroy(leds_class);
 }
 
-subsys_initcall(leds_init);
+postcore_initcall(leds_init);
 module_exit(leds_exit);
 
 MODULE_AUTHOR("John Lenz, Richard Purdie");
-- 
2.7.4