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authorDavid Brownell <david-b@pacbell.net>2006-08-14 23:11:08 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-25 21:08:37 -0700
commitf1cc0a894c963923b766eb2d455747495e6e982d (patch)
treecccd3a2c337f0117d664e204eedf5c222a6c43f7 /kernel/power/swsusp.c
parent185849991d592497e43bcd264c6152af1261ffe2 (diff)
PM: issue PM_EVENT_PRETHAW
This patch is the first of this series that should actually change any behavior ... by issuing the new event, now tha the rest of the kernel is prepared to receive it. This converts the PM core to issue the new PRETHAW message, which the rest of the kernel is now ready to receive. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/power/swsusp.c')
-rw-r--r--kernel/power/swsusp.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 17f669c8301..62752899b1a 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -248,6 +248,9 @@ int swsusp_suspend(void)
restore_processor_state();
Restore_highmem:
restore_highmem();
+ /* NOTE: device_power_up() is just a resume() for devices
+ * that suspended with irqs off ... no overall powerup.
+ */
device_power_up();
Enable_irqs:
local_irq_enable();
@@ -257,8 +260,12 @@ Enable_irqs:
int swsusp_resume(void)
{
int error;
+
local_irq_disable();
- if (device_power_down(PMSG_FREEZE))
+ /* NOTE: device_power_down() is just a suspend() with irqs off;
+ * it has no special "power things down" semantics
+ */
+ if (device_power_down(PMSG_PRETHAW))
printk(KERN_ERR "Some devices failed to power down, very bad\n");
/* We'll ignore saved state, but this gets preempt count (etc) right */
save_processor_state();