[PATCH] swsusp: switch pm_message_t to struct

This adds type-checking to pm_message_t, so that people can't confuse it
with int or u32.  It also allows us to fix "disk yoyo" during suspend (disk
spinning down/up/down).

[We've tried that before; since that cpufreq problems were fixed and I've
tried make allyes config and fixed resulting damage.]

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index 7e1afca..c0712a1 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -708,7 +708,7 @@
 {
 	struct media_bay_info	*bay = macio_get_drvdata(mdev);
 
-	if (state != mdev->ofdev.dev.power.power_state && state == PM_SUSPEND_MEM) {
+	if (state.event != mdev->ofdev.dev.power.power_state.event && state.event == PM_EVENT_SUSPEND) {
 		down(&bay->lock);
 		bay->sleeping = 1;
 		set_mb_power(bay, 0);
@@ -723,7 +723,7 @@
 {
 	struct media_bay_info	*bay = macio_get_drvdata(mdev);
 
-	if (mdev->ofdev.dev.power.power_state != 0) {
+	if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) {
 		mdev->ofdev.dev.power.power_state = PMSG_ON;
 
 	       	/* We re-enable the bay using it's previous content