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ACPI / osl: implement acpi_os_sleep() with msleep()

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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 <chuansheng.liu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Liu Chuansheng 2013-09-12 01:42:57 +08:00 committed by Rafael J. Wysocki
parent 4a10c2ac2f
commit 302822996f
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/osl.c
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@ -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)