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[ACPI] fix reboot upon suspend-to-disk

Browse Source 
http://bugzilla.kernel.org/show_bug.cgi?id=4320

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy
2005-12-01 04:29:00 -05:00
committed by Len Brown
parent 7116317dc9
commit 729b4d4ce1
7 changed files with 26 additions and 35 deletions
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kernel/power/disk.c
+1 -8
View File
@@ -52,7 +52,7 @@ static void power_down(suspend_disk_method_t mode)
switch(mode) {
case PM_DISK_PLATFORM:
kernel_power_off_prepare();
kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
error = pm_ops->enter(PM_SUSPEND_DISK);
break;
case PM_DISK_SHUTDOWN:
@@ -119,13 +119,6 @@ static int prepare_processes(void)
goto thaw;
}
if (pm_disk_mode == PM_DISK_PLATFORM) {
if (pm_ops && pm_ops->prepare) {
if ((error = pm_ops->prepare(PM_SUSPEND_DISK)))
goto thaw;
}
}
/* Free memory before shutting down devices. */
free_some_memory();
return 0;
kernel/sys.c
+10 -15
View File
@@ -427,23 +427,25 @@ void kernel_kexec(void)
}
EXPORT_SYMBOL_GPL(kernel_kexec);
void kernel_shutdown_prepare(enum system_states state)
{
notifier_call_chain(&reboot_notifier_list,
(state == SYSTEM_HALT)?SYS_HALT:SYS_POWER_OFF, NULL);
system_state = state;
device_shutdown();
}
/**
* kernel_halt - halt the system
*
* Shutdown everything and perform a clean system halt.
*/
void kernel_halt_prepare(void)
{
notifier_call_chain(&reboot_notifier_list, SYS_HALT, NULL);
system_state = SYSTEM_HALT;
device_shutdown();
}
void kernel_halt(void)
{
kernel_halt_prepare();
kernel_shutdown_prepare(SYSTEM_HALT);
printk(KERN_EMERG "System halted.\n");
machine_halt();
}
EXPORT_SYMBOL_GPL(kernel_halt);
/**
@@ -451,20 +453,13 @@ EXPORT_SYMBOL_GPL(kernel_halt);
*
* Shutdown everything and perform a clean system power_off.
*/
void kernel_power_off_prepare(void)
{
notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL);
system_state = SYSTEM_POWER_OFF;
device_shutdown();
}
void kernel_power_off(void)
{
kernel_power_off_prepare();
kernel_shutdown_prepare(SYSTEM_POWER_OFF);
printk(KERN_EMERG "Power down.\n");
machine_power_off();
}
EXPORT_SYMBOL_GPL(kernel_power_off);
/*
* Reboot system call: for obvious reasons only root may call it,
* and even root needs to set up some magic numbers in the registers