[ACPI] ACPICA 20051216

Implemented optional support to allow unresolved names
within ASL Package objects. A null object is inserted in
the package when a named reference cannot be located in
the current namespace. Enabled via the interpreter slack
flag which Linux has enabled by default (acpi=strict
to disable slack).  This should eliminate AE_NOT_FOUND
exceptions seen on machines that contain such code.

Implemented an optimization to the initialization
sequence that can improve boot time. During ACPI device
initialization, the _STA method is now run if and only
if the _INI method exists. The _STA method is used to
determine if the device is present; An _INI can only be
run if _STA returns present, but it is a waste of time to
run the _STA method if the _INI does not exist. (Prototype
and assistance from Dong Wei)

Implemented use of the C99 uintptr_t for the pointer
casting macros if it is available in the current
compiler. Otherwise, the default (void *) cast is used
as before.

Fixed some possible memory leaks found within the
execution path of the Break, Continue, If, and CreateField
operators. (Valery Podrezov)

Fixed a problem introduced in the 20051202 release where
an exception is generated during method execution if a
control method attempts to declare another method.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 8 insertions, 25 deletions

diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index e522763bb69..74f6996db2d 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -314,12 +314,13 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
 
 	case AML_CLASS_EXECUTE:
 	case AML_CLASS_CREATE:
-
 		/*
 		 * Most operators with arguments.
 		 * Start a new result/operand state
 		 */
-		status = acpi_ds_result_stack_push(walk_state);
+		if (walk_state->opcode != AML_CREATE_FIELD_OP) {
+			status = acpi_ds_result_stack_push(walk_state);
+		}
 		break;
 
 	default:
@@ -723,20 +724,6 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 
       cleanup:
 
-	/* Invoke exception handler on error */
-
-	if (ACPI_FAILURE(status) &&
-	    acpi_gbl_exception_handler && !(status & AE_CODE_CONTROL)) {
-		acpi_ex_exit_interpreter();
-		status = acpi_gbl_exception_handler(status,
-						    walk_state->method_node->
-						    name.integer,
-						    walk_state->opcode,
-						    walk_state->aml_offset,
-						    NULL);
-		(void)acpi_ex_enter_interpreter();
-	}
-
 	if (walk_state->result_obj) {
 		/* Break to debugger to display result */
 
@@ -758,18 +745,14 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 	}
 #endif
 
-	/* Always clear the object stack */
-
-	walk_state->num_operands = 0;
-
-#ifdef ACPI_DISASSEMBLER
-
-	/* On error, display method locals/args */
+	/* Invoke exception handler on error */
 
 	if (ACPI_FAILURE(status)) {
-		acpi_dm_dump_method_info(status, walk_state, op);
+		status = acpi_ds_method_error(status, walk_state);
 	}
-#endif
 
+	/* Always clear the object stack */
+
+	walk_state->num_operands = 0;
 	return_ACPI_STATUS(status);
 }