From 14808822a9cea782c2e6f8d39e438cc3891f6472 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 10 Apr 2008 19:06:38 +0400 Subject: ACPICA: Fix for namespace lookup problem Fixed a problem where objects of certain types (Device, ThermalZone, Processor, PowerResource) can be not found if they are declared and referenced from within the same control method http://www.acpica.org/bugzilla/show_bug.cgi?id=341. Signed-off-by: Lin Ming Signed-off-by: Bob Moore Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/parser/psargs.c | 24 ++++++++---------------- 1 file changed, 8 insertions(+), 16 deletions(-) (limited to 'drivers/acpi/parser') diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c index c2b9835c890..442880f5600 100644 --- a/drivers/acpi/parser/psargs.c +++ b/drivers/acpi/parser/psargs.c @@ -230,12 +230,11 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, struct acpi_parse_state *parser_state, union acpi_parse_object *arg, u8 possible_method_call) { + acpi_status status; char *path; union acpi_parse_object *name_op; - acpi_status status; union acpi_operand_object *method_desc; struct acpi_namespace_node *node; - union acpi_generic_state scope_info; ACPI_FUNCTION_TRACE(ps_get_next_namepath); @@ -249,25 +248,18 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, return_ACPI_STATUS(AE_OK); } - /* Setup search scope info */ - - scope_info.scope.node = NULL; - node = parser_state->start_node; - if (node) { - scope_info.scope.node = node; - } - /* - * Lookup the name in the internal namespace. We don't want to add - * anything new to the namespace here, however, so we use MODE_EXECUTE. + * Lookup the name in the internal namespace, starting with the current + * scope. We don't want to add anything new to the namespace here, + * however, so we use MODE_EXECUTE. * Allow searching of the parent tree, but don't open a new scope - * we just want to lookup the object (must be mode EXECUTE to perform * the upsearch) */ - status = - acpi_ns_lookup(&scope_info, path, ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, - NULL, &node); + status = acpi_ns_lookup(walk_state->scope_info, path, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + NULL, &node); /* * If this name is a control method invocation, we must -- cgit v1.2.3