obj_desc->method.owning_id = acpi_ut_allocate_owner_id (ACPI_OWNER_TYPE_METHOD); 
status = acpi_ut_allocate_owner_id (&obj_desc->method.owner_id); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } 
acpi_ds_call_control_method (	struct acpi_thread_state        *thread,	struct acpi_walk_state          *this_walk_state,	union acpi_parse_object         *op){	acpi_status                     status;	struct acpi_namespace_node      *method_node;	struct acpi_walk_state          *next_walk_state;	union acpi_operand_object       *obj_desc;	struct acpi_parameter_info      info;	u32                             i;	ACPI_FUNCTION_TRACE_PTR ("ds_call_control_method", this_walk_state);	ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Execute method %p, currentstate=%p\n",		this_walk_state->prev_op, this_walk_state));	/*	 * Get the namespace entry for the control method we are about to call	 */	method_node = this_walk_state->method_call_node;	if (!method_node) {		return_ACPI_STATUS (AE_NULL_ENTRY);	}	obj_desc = acpi_ns_get_attached_object (method_node);	if (!obj_desc) {		return_ACPI_STATUS (AE_NULL_OBJECT);	}	obj_desc->method.owning_id = acpi_ut_allocate_owner_id (ACPI_OWNER_TYPE_METHOD);	/* Init for new method, wait on concurrency semaphore */	status = acpi_ds_begin_method_execution (method_node, obj_desc,			  this_walk_state->method_node);	if (ACPI_FAILURE (status)) {		return_ACPI_STATUS (status);	}	if (!(obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY)) {		/* 1) Parse: Create a new walk state for the preempting walk */		next_walk_state = acpi_ds_create_walk_state (obj_desc->method.owning_id,				  op, obj_desc, NULL);		if (!next_walk_state) {			return_ACPI_STATUS (AE_NO_MEMORY);		}		/* Create and init a Root Node */		op = acpi_ps_create_scope_op ();		if (!op) {			status = AE_NO_MEMORY;			goto cleanup;		}		status = acpi_ds_init_aml_walk (next_walk_state, op, method_node,				  obj_desc->method.aml_start, obj_desc->method.aml_length,				  NULL, 1);		if (ACPI_FAILURE (status)) {			acpi_ds_delete_walk_state (next_walk_state);			goto cleanup;		}		/* Begin AML parse */		status = acpi_ps_parse_aml (next_walk_state);		acpi_ps_delete_parse_tree (op);	}	/* 2) Execute: Create a new state for the preempting walk */	next_walk_state = acpi_ds_create_walk_state (obj_desc->method.owning_id,			  NULL, obj_desc, thread);	if (!next_walk_state) {		status = AE_NO_MEMORY;		goto cleanup;	}	/*	 * The resolved arguments were put on the previous walk state's operand	 * stack.  Operands on the previous walk state stack always	 * start at index 0.	 * Null terminate the list of arguments	 */	this_walk_state->operands [this_walk_state->num_operands] = NULL;	info.parameters = &this_walk_state->operands[0];	info.parameter_type = ACPI_PARAM_ARGS;	status = acpi_ds_init_aml_walk (next_walk_state, NULL, method_node,			  obj_desc->method.aml_start, obj_desc->method.aml_length,			  &info, 3);	if (ACPI_FAILURE (status)) {		goto cleanup;	}	/*	 * Delete the operands on the previous walkstate operand stack	 * (they were copied to new objects)	 */	for (i = 0; i < obj_desc->method.param_count; i++) {		acpi_ut_remove_reference (this_walk_state->operands [i]);		this_walk_state->operands [i] = NULL;	}	/* Clear the operand stack */	this_walk_state->num_operands = 0;	ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,		"Starting nested execution, newstate=%p\n", next_walk_state));	if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {		status = obj_desc->method.implementation (next_walk_state);		return_ACPI_STATUS (status);	}	return_ACPI_STATUS (AE_OK);	/* On error, we must delete the new walk state */cleanup:	if (next_walk_state && (next_walk_state->method_desc)) {		/* Decrement the thread count on the method parse tree */	   next_walk_state->method_desc->method.thread_count--;	}	(void) acpi_ds_terminate_control_method (next_walk_state);	acpi_ds_delete_walk_state (next_walk_state);	return_ACPI_STATUS (status);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/f9f4601f331aa1226d7a798a01950efbb388f07f/dsmethod.c/buggy/drivers/acpi/dispatcher/dsmethod.c