[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>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c
index 2ccee3763acf..50501764d050 100644
--- a/drivers/base/power/suspend.c
+++ b/drivers/base/power/suspend.c
@@ -40,22 +40,22 @@ int suspend_device(struct device * dev, pm_message_t state)
         int error = 0;
 
         down(&dev->sem);
-        if (dev->power.power_state) {
+        if (dev->power.power_state.event) {
                 dev_dbg(dev, "PM: suspend %d-->%d\n",
-                        dev->power.power_state, state);
+                        dev->power.power_state.event, state.event);
         }
         if (dev->power.pm_parent
-                        && dev->power.pm_parent->power.power_state) {
+                        && dev->power.pm_parent->power.power_state.event) {
                 dev_err(dev,
                         "PM: suspend %d->%d, parent %s already %d\n",
-                        dev->power.power_state, state,
+                        dev->power.power_state.event, state.event,
                         dev->power.pm_parent->bus_id,
-                        dev->power.pm_parent->power.power_state);
+                        dev->power.pm_parent->power.power_state.event);
         }
 
         dev->power.prev_state = dev->power.power_state;
 
-        if (dev->bus && dev->bus->suspend && !dev->power.power_state) {
+        if (dev->bus && dev->bus->suspend && !dev->power.power_state.event) {
                 dev_dbg(dev, "suspending\n");
                 error = dev->bus->suspend(dev, state);
         }