From 872d83d00f67021e036d75aab3b7c6e3fc7e29ee Mon Sep 17 00:00:00 2001 From: Arnaud Patard Date: Thu, 27 Apr 2006 05:25:00 -0400 Subject: [PATCH] ACPI: suppress power button event on S3 resume http://bugzilla.kernel.org/show_bug.cgi?id=6612 Note that this fix depends on a fix in ACPICA 20060608 to replace a semaphore with a spin-lock. Signed-off-by: Arnaud Patard Acked-by: "Yu, Luming" Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/sleep/main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 930427fc0c4b..62ce87d71651 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -105,6 +105,14 @@ static int acpi_pm_enter(suspend_state_t pm_state) default: return -EINVAL; } + + /* ACPI 3.0 specs (P62) says that it's the responsabilty + * of the OSPM to clear the status bit [ implying that the + * POWER_BUTTON event should not reach userspace ] + */ + if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) + acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n");