1 files changed, 17 insertions, 5 deletions

diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index ab5c03724527..313803b53125 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -740,26 +740,38 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                         value = acpi_gbl_integer_byte_width;
                         break;
 
-                case ACPI_TYPE_BUFFER:
-                        value = temp_desc->buffer.length;
-                        break;
-
                 case ACPI_TYPE_STRING:
                         value = temp_desc->string.length;
                         break;
 
+                case ACPI_TYPE_BUFFER:
+
+                        /* Buffer arguments may not be evaluated at this point */
+
+                        status = acpi_ds_get_buffer_arguments(temp_desc);
+                        value = temp_desc->buffer.length;
+                        break;
+
                 case ACPI_TYPE_PACKAGE:
+
+                        /* Package arguments may not be evaluated at this point */
+
+                        status = acpi_ds_get_package_arguments(temp_desc);
                         value = temp_desc->package.count;
                         break;
 
                 default:
                         ACPI_ERROR((AE_INFO,
-                                    "Operand is not Buf/Int/Str/Pkg - found type %s",
+                                    "Operand must be Buffer/Integer/String/Package - found type %s",
                                     acpi_ut_get_type_name(type)));
                         status = AE_AML_OPERAND_TYPE;
                         goto cleanup;
                 }
 
+                if (ACPI_FAILURE(status)) {
+                        goto cleanup;
+                }
+
                 /*
                  * Now that we have the size of the object, create a result
                  * object to hold the value