diff options
| author | Jung-uk Kim <jkim@FreeBSD.org> | 2019-02-20 23:04:28 +0000 |
|---|---|---|
| committer | Jung-uk Kim <jkim@FreeBSD.org> | 2019-02-20 23:04:28 +0000 |
| commit | 933b0124ad04366156cb4793d2530ad791d88ead (patch) | |
| tree | 6d20df0ad987596d76c7b0f8e58ef8e8e25b4b69 /source/compiler/asloperands.c | |
| parent | ca9862327327526f102b9370cc74b2a9e4641b0d (diff) | |
Notes
Diffstat (limited to 'source/compiler/asloperands.c')
| -rw-r--r-- | source/compiler/asloperands.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/source/compiler/asloperands.c b/source/compiler/asloperands.c index a4781ed4335d..172f347063bc 100644 --- a/source/compiler/asloperands.c +++ b/source/compiler/asloperands.c @@ -657,6 +657,7 @@ OpnDoRegion ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; + ACPI_ADR_SPACE_TYPE SpaceId; /* Opcode is parent node */ @@ -664,9 +665,10 @@ OpnDoRegion ( Next = Op->Asl.Child; - /* Second child is the space ID*/ + /* Second child is the space ID */ Next = Next->Asl.Next; + SpaceId = (ACPI_ADR_SPACE_TYPE) Next->Common.Value.Integer; /* Third child is the region offset */ @@ -677,7 +679,13 @@ OpnDoRegion ( Next = Next->Asl.Next; if (Next->Asl.ParseOpcode == PARSEOP_INTEGER) { + /* Check for zero length */ + Op->Asl.Value.Integer = Next->Asl.Value.Integer; + if (!Op->Asl.Value.Integer && (SpaceId < ACPI_NUM_PREDEFINED_REGIONS)) + { + AslError (ASL_ERROR, ASL_MSG_REGION_LENGTH, Op, NULL); + } } else { |