1 files changed, 26 insertions, 29 deletions

diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c
index 6c64e55dab0e..b35f7c817acf 100644
--- a/drivers/acpi/executer/exresolv.c
+++ b/drivers/acpi/executer/exresolv.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2007, R. Byron Moore
+ * Copyright (C) 2000 - 2008, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -140,7 +140,6 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
 {
         acpi_status status = AE_OK;
         union acpi_operand_object *stack_desc;
-        void *temp_node;
         union acpi_operand_object *obj_desc = NULL;
         u16 opcode;
 
@@ -156,23 +155,6 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                 opcode = stack_desc->reference.opcode;
 
                 switch (opcode) {
-                case AML_NAME_OP:
-
-                        /*
-                         * Convert name reference to a namespace node
-                         * Then, acpi_ex_resolve_node_to_value can be used to get the value
-                         */
-                        temp_node = stack_desc->reference.object;
-
-                        /* Delete the Reference Object */
-
-                        acpi_ut_remove_reference(stack_desc);
-
-                        /* Return the namespace node */
-
-                        (*stack_ptr) = temp_node;
-                        break;
-
                 case AML_LOCAL_OP:
                 case AML_ARG_OP:
 
@@ -207,15 +189,25 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                         switch (stack_desc->reference.target_type) {
                         case ACPI_TYPE_BUFFER_FIELD:
 
-                                /* Just return - leave the Reference on the stack */
+                                /* Just return - do not dereference */
                                 break;
 
                         case ACPI_TYPE_PACKAGE:
 
+                                /* If method call or copy_object - do not dereference */
+
+                                if ((walk_state->opcode ==
+                                     AML_INT_METHODCALL_OP)
+                                    || (walk_state->opcode == AML_COPY_OP)) {
+                                        break;
+                                }
+
+                                /* Otherwise, dereference the package_index to a package element */
+
                                 obj_desc = *stack_desc->reference.where;
                                 if (obj_desc) {
                                         /*
-                                         * Valid obj descriptor, copy pointer to return value
+                                         * Valid object descriptor, copy pointer to return value
                                          * (i.e., dereference the package index)
                                          * Delete the ref object, increment the returned object
                                          */
@@ -224,11 +216,11 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                                         *stack_ptr = obj_desc;
                                 } else {
                                         /*
-                                         * A NULL object descriptor means an unitialized element of
+                                         * A NULL object descriptor means an uninitialized element of
                                          * the package, can't dereference it
                                          */
                                         ACPI_ERROR((AE_INFO,
-                                                    "Attempt to deref an Index to NULL pkg element Idx=%p",
+                                                    "Attempt to dereference an Index to NULL package element Idx=%p",
                                                     stack_desc));
                                         status = AE_AML_UNINITIALIZED_ELEMENT;
                                 }
@@ -239,7 +231,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                                 /* Invalid reference object */
 
                                 ACPI_ERROR((AE_INFO,
-                                            "Unknown TargetType %X in Index/Reference obj %p",
+                                            "Unknown TargetType %X in Index/Reference object %p",
                                             stack_desc->reference.target_type,
                                             stack_desc));
                                 status = AE_AML_INTERNAL;
@@ -251,7 +243,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                 case AML_DEBUG_OP:
                 case AML_LOAD_OP:
 
-                        /* Just leave the object as-is */
+                        /* Just leave the object as-is, do not dereference */
 
                         break;
 
@@ -390,10 +382,10 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
         }
 
         /*
-         * For reference objects created via the ref_of or Index operators,
-         * we need to get to the base object (as per the ACPI specification
-         * of the object_type and size_of operators). This means traversing
-         * the list of possibly many nested references.
+         * For reference objects created via the ref_of, Index, or Load/load_table
+         * operators, we need to get to the base object (as per the ACPI
+         * specification of the object_type and size_of operators). This means
+         * traversing the list of possibly many nested references.
          */
         while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
                 switch (obj_desc->reference.opcode) {
@@ -463,6 +455,11 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
                         }
                         break;
 
+                case AML_LOAD_OP:
+
+                        type = ACPI_TYPE_DDB_HANDLE;
+                        goto exit;
+
                 case AML_LOCAL_OP:
                 case AML_ARG_OP: