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| author | Lv Zheng <lv.zheng@intel.com> | 2015-12-29 08:58:02 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-01-01 05:47:36 +0300 |
| commit | ee387409ca7d74d83a26915a367bf9b033e29803 (patch) | |
| tree | 4c70b5b8e074bcb45d4f81006684360cb79659dd /drivers/acpi/acpica/nsrepair.c | |
| parent | 4debda539af12ebc55fc99102dca2861e5f325fd (diff) | |
| download | linux-ee387409ca7d74d83a26915a367bf9b033e29803.tar.xz | |
ACPICA: Namespace: Add String -> ObjectReference conversion support
ACPICA commit 80e60d72959bb51c5d08c8500d978607a42ed81d
BIOS developers may accidently put the quotes around the name strings,
which converts the object references in the packages indicated by the name
strings into the data objects (strings). Such kind of error has been seen
in _DEP control methods on some platforms. This patch implements a
workaround to correct it. Reported by Bastien Nocera. Fixed by Lv Zheng.
Link: https://github.com/acpica/acpica/commit/80e60d72
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=106231
Reported-and-tested-by: Bastien Nocera <bugzilla@hadess.net>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/nsrepair.c')
| -rw-r--r-- | drivers/acpi/acpica/nsrepair.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index 4b7dbff66a14..6418863f93d5 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -116,6 +116,11 @@ static const struct acpi_simple_repair_info acpi_object_repair_info[] = { ACPI_NOT_PACKAGE_ELEMENT, acpi_ns_convert_to_resource}, + /* Object reference conversions */ + + {"_DEP", ACPI_RTYPE_STRING, ACPI_ALL_PACKAGE_ELEMENTS, + acpi_ns_convert_to_reference}, + /* Unicode conversions */ {"_MLS", ACPI_RTYPE_STRING, 1, @@ -360,7 +365,9 @@ static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct /* Check if we can actually repair this name/type combination */ if ((return_btype & this_name->unexpected_btypes) && - (package_index == this_name->package_index)) { + (this_name->package_index == + ACPI_ALL_PACKAGE_ELEMENTS + || package_index == this_name->package_index)) { return (this_name); } |