ACPICA: Return method arg count from acpi_get_object_info

Also update the debugger so that the correct number of arguments is
passed to the method. Prevents a warning message from the debugger.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/namespace/nsxfname.c

@@ -265,6 +265,10 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
 	info->name = node->name.integer;
 	info->valid = 0;
 
+	if (node->type == ACPI_TYPE_METHOD) {
+		info->param_count = node->object->method.param_count;
+	}
+
 	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;

include/acpi/actypes.h

@@ -859,6 +859,7 @@ struct acpi_obj_info_header {
 struct acpi_device_info {
 	ACPI_COMMON_OBJ_INFO;
 
+	u32 param_count;	/* If a method, required parameter count */
 	u32 valid;		/* Indicates which fields below are valid */
 	u32 current_status;	/* _STA value */
 	acpi_integer address;	/* _ADR value if any */