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ACPICA: Fix for possible error when packages/buffers are passed to methods externally 

Fixed a problem where buffer and package objects passed as
arguments to a control method via the external AcpiEvaluateObject
interface could cause an AE_AML_INTERNAL exception depending on the
order and type of operators executed by the target control method.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2008-04-10 19:06:43 +04:00 committed by Len Brown
parent a3df4dadd4
commit 24a3157a90
1 changed files with 8 additions and 0 deletions
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8
drivers/acpi/utilities/utcopy.c
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@ -511,6 +511,10 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
external_object->buffer.length);
internal_object->buffer.length = external_object->buffer.length;
/* Mark buffer data valid */
internal_object->buffer.flags |= AOPOBJ_DATA_VALID;
break;
case ACPI_TYPE_INTEGER:
@ -586,6 +590,10 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
}
}
/* Mark package data valid */
package_object->package.flags |= AOPOBJ_DATA_VALID;
*internal_object = package_object;
return_ACPI_STATUS(status);
}