diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/namespace/nssearch.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/namespace/nssearch.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/sys/contrib/dev/acpica/components/namespace/nssearch.c b/sys/contrib/dev/acpica/components/namespace/nssearch.c index 9f24f1c..a1e6d1a 100644 --- a/sys/contrib/dev/acpica/components/namespace/nssearch.c +++ b/sys/contrib/dev/acpica/components/namespace/nssearch.c @@ -338,10 +338,42 @@ AcpiNsSearchAndEnter ( * If we found it AND the request specifies that a find is an error, * return the error */ - if ((Status == AE_OK) && - (Flags & ACPI_NS_ERROR_IF_FOUND)) + if (Status == AE_OK) { - Status = AE_ALREADY_EXISTS; + /* The node was found in the namespace */ + + /* + * If the namespace override feature is enabled for this node, + * delete any existing attached sub-object and make the node + * look like a new node that is owned by the override table. + */ + if (Flags & ACPI_NS_OVERRIDE_IF_FOUND) + { + ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, + "Namespace override: %4.4s pass %u type %X Owner %X\n", + ACPI_CAST_PTR(char, &TargetName), InterpreterMode, + (*ReturnNode)->Type, WalkState->OwnerId)); + + AcpiNsDeleteChildren (*ReturnNode); + if (AcpiGbl_RuntimeNamespaceOverride) + { + AcpiUtRemoveReference ((*ReturnNode)->Object); + (*ReturnNode)->Object = NULL; + (*ReturnNode)->OwnerId = WalkState->OwnerId; + } + else + { + AcpiNsRemoveNode (*ReturnNode); + *ReturnNode = ACPI_ENTRY_NOT_FOUND; + } + } + + /* Return an error if we don't expect to find the object */ + + else if (Flags & ACPI_NS_ERROR_IF_FOUND) + { + Status = AE_ALREADY_EXISTS; + } } #ifdef ACPI_ASL_COMPILER |
