From: Lin Ming <ming.m.lin@xxxxxxxxx>
For Windows compatibility, return an implicit integer of value
zero for methods that have no executable code. A default implicit
value of zero is provided for methods. Lin Ming.
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/parser/psxface.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 4985ce5..41b0c8c 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -295,6 +295,22 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
goto cleanup;
}
+ /*
+ * Start method evaluation with an implicit return of zero.
+ * This is done for Windows compatibility.
+ */
+ if (acpi_gbl_enable_interpreter_slack) {
+ walk_state->implicit_return_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!walk_state->implicit_return_obj) {
+ status = AE_NO_MEMORY;
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ walk_state->implicit_return_obj->integer.value = 0;
+ }
+
/* Parse the AML */
status = acpi_ps_parse_aml(walk_state);
--
1.5.6.6
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
