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ACPICA: Fix to make _SST method optional

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Fixes a problem introduced in 20080514 where the status of
execution of _SST is incorrectly returned to the caller. _SST
is optional, and if it is AE_NOT_FOUND, the exception should be
ignored.

http://www.acpica.org/bugzilla/show_bug.cgi?id=716

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2008-06-10 14:26:57 +08:00 committed by Len Brown
parent 0bda3f2f86
commit d52c79ace6
1 changed files with 5 additions and 3 deletions
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8
drivers/acpi/hardware/hwsleep.c
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@ -223,15 +223,17 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
break;
}
/* Set the system indicators to show the desired sleep state. */
/*
* Set the system indicators to show the desired sleep state.
* _SST is an optional method (return no error if not found)
*/
status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
ACPI_EXCEPTION((AE_INFO, status,
"While executing method _SST"));
}
return_ACPI_STATUS(status);
return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)