Commit 24a3157a authored Apr 10, 2008 by Bob Moore Committed by Len Brown Apr 22, 2008

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>

parent a3df4dad

drivers/acpi/utilities/utcopy.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}