From 5572a9859fa55216597b8226717691956d3e53e3 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Thu, 13 Nov 2008 10:51:49 +0800 Subject: [PATCH] ACPICA: Fix to allow aliases within ASL namepaths Fixes a problem where the use of an alias within a namepath would result in a not found error or cause the compiler to fault. Also now allows forward references from the Alias operator itself. ACPICA BZ 738. http://www.acpica.org/bugzilla/show_bug.cgi?id=738 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/namespace/nsaccess.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c index 29c7c271dbb..35b0e46bd09 100644 --- a/drivers/acpi/namespace/nsaccess.c +++ b/drivers/acpi/namespace/nsaccess.c @@ -588,6 +588,10 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, * segments). */ if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { + if (!this_node->object) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + if (acpi_ns_opens_scope (((struct acpi_namespace_node *)this_node-> object)->type)) { -- 2.41.1