From 302822996fd572676bb66a7c4351f6faa0e4ddfd Mon Sep 17 00:00:00 2001 From: Liu Chuansheng Date: Thu, 12 Sep 2013 01:42:57 +0800 Subject: [PATCH] ACPI / osl: implement acpi_os_sleep() with msleep() Currently, acpi_os_sleep() uses schedule_timeout_interruptible() which can be interrupted by a signal, and that causes the real sleep time to be shorter. According to the ACPI spec: The Sleep term is used to implement long-term timing requirements. Execution is delayed for at least the required number of milliseconds. The sleeping time should be at least the required number msecs, so use msleep() which guarantees that to implement it. Signed-off-by: Liu Chuansheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index e5f416c7f66e..b1629b571cb2 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -820,7 +820,7 @@ acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler) void acpi_os_sleep(u64 ms) { - schedule_timeout_interruptible(msecs_to_jiffies(ms)); + msleep(ms); } void acpi_os_stall(u32 us)