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authorLin Ming <ming.m.lin@intel.com>2011-11-28 05:46:02 +0400
committerLen Brown <len.brown@intel.com>2012-01-17 12:36:25 +0400
commit8931d9ea78848b073bf299594f148b83abde4a5e (patch)
tree23df1b9c98f4a9ea7575586db88d7cf2343853f4 /drivers/acpi/acpica/excreate.c
parent42f5284306465dc263ce227b0c5bd2c7dcd43cdf (diff)
downloadlinux-8931d9ea78848b073bf299594f148b83abde4a5e.tar.xz
ACPICA: Fix to allow region arguments to reference other scopes
Allow referenced objects to be in a different scope. http://www.acpica.org/bugzilla/show_bug.cgi?id=937 http://marc.info/?l=linux-acpi&m=131636632718222&w=2 ACPI Error: [RAMB] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359) ACPI Exception: AE_NOT_FOUND, Could not execute arguments for [RAMW] (Region) (20110112/nsinit-349) Scope (_SB) { Name (RAMB, 0xDF5A1018) OperationRegion (\RAMW, SystemMemory, RAMB, 0x00010000) } For above ASL code, we need to save scope node(\_SB) to lookup the argument node(\_SB.RAMB). Reported-by: Jim Green <student.northwestern@gmail.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/excreate.c')
-rw-r--r--drivers/acpi/acpica/excreate.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index 110711afada8..8a06dc523af7 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -330,6 +330,12 @@ acpi_ex_create_region(u8 * aml_start,
region_obj2 = obj_desc->common.next_object;
region_obj2->extra.aml_start = aml_start;
region_obj2->extra.aml_length = aml_length;
+ if (walk_state->scope_info) {
+ region_obj2->extra.scope_node =
+ walk_state->scope_info->scope.node;
+ } else {
+ region_obj2->extra.scope_node = node;
+ }
/* Init the region from the operands */