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authorLin Ming <ming.m.lin@intel.com>2008-04-10 19:06:38 +0400
committerLen Brown <len.brown@intel.com>2008-04-22 14:29:24 -0400
commit14808822a9cea782c2e6f8d39e438cc3891f6472 (patch)
treec03ae3704fe2d4d07088bb8363e4901e42d13cd6
parent3e08e2d2d6efb256aa035e300deb059bb333b6db (diff)
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 <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--drivers/acpi/parser/psargs.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c
index c2b9835c890b..442880f5600e 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