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-rw-r--r--drivers/acpi/parser/psparse.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index a8995ca52ee..a4c4020c40e 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -594,6 +594,30 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
* The object is deleted
*/
if (!previous_walk_state->return_desc) {
+ /*
+ * In slack mode execution, if there is no return value
+ * we should implicitly return zero (0) as a default value.
+ */
+ if (acpi_gbl_enable_interpreter_slack &&
+ !previous_walk_state->
+ implicit_return_obj) {
+ previous_walk_state->
+ implicit_return_obj =
+ acpi_ut_create_internal_object
+ (ACPI_TYPE_INTEGER);
+ if (!previous_walk_state->
+ implicit_return_obj) {
+ return_ACPI_STATUS
+ (AE_NO_MEMORY);
+ }
+
+ previous_walk_state->
+ implicit_return_obj->
+ integer.value = 0;
+ }
+
+ /* Restart the calling control method */
+
status =
acpi_ds_restart_control_method
(walk_state,