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path: root/drivers/acpi/dispatcher/dsutils.c
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Diffstat (limited to 'drivers/acpi/dispatcher/dsutils.c')
-rw-r--r--drivers/acpi/dispatcher/dsutils.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
index 53356a591ac..3fbe17ebef5 100644
--- a/drivers/acpi/dispatcher/dsutils.c
+++ b/drivers/acpi/dispatcher/dsutils.c
@@ -202,6 +202,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
*/
if ((!op->common.parent) ||
(op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
+
/* No parent, the return value cannot possibly be used */
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -352,6 +353,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
}
if (!acpi_ds_is_result_used(op, walk_state)) {
+
/* Must pop the result stack (obj_desc should be equal to result_obj) */
status = acpi_ds_result_pop(&obj_desc, walk_state);
@@ -498,7 +500,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
*/
if ((walk_state->deferred_node) &&
(walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
- && (arg_index != 0)) {
+ && (arg_index ==
+ (u32) ((walk_state->opcode ==
+ AML_CREATE_FIELD_OP) ? 3 : 2))) {
obj_desc =
ACPI_CAST_PTR(union acpi_operand_object,
walk_state->deferred_node);
@@ -521,6 +525,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
&& (parent_op->common.aml_opcode != AML_REGION_OP)
&& (parent_op->common.aml_opcode !=
AML_INT_NAMEPATH_OP)) {
+
/* Enter name into namespace if not found */
interpreter_mode = ACPI_IMODE_LOAD_PASS2;