diff options
| author | Daniil Tatianin <d-tatianin@yandex-team.ru> | 2025-04-01 21:43:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:31:30 +0200 |
| commit | 594380c4b51a3df83ab74c1b95cb433cabcee5fc (patch) | |
| tree | a65c2cb162c7509af3958c31c10c28245286f999 | |
| parent | 9c094deb6b13a4d5978e4829d6d50a6ed3d2bf2f (diff) | |
ACPICA: exserial: don't forget to handle FFixedHW opregions for reading
[ Upstream commit 0f8af0356a45547683a216e4921006a3c6a6d922 ]
The initial commit that introduced support for FFixedHW operation
regions did add a special case in the AcpiExReadSerialBus If, but
forgot to actually handle it inside the switch, so add the missing case
to prevent reads from failing with AE_AML_INVALID_SPACE_ID.
Link: https://github.com/acpica/acpica/pull/998
Fixes: ee64b827a9a ("ACPICA: Add support for FFH Opregion special context data")
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Link: https://patch.msgid.link/20250401184312.599962-1-d-tatianin@yandex-team.ru
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/acpi/acpica/exserial.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exserial.c b/drivers/acpi/acpica/exserial.c index 5241f4c01c76..89a4ac447a2b 100644 --- a/drivers/acpi/acpica/exserial.c +++ b/drivers/acpi/acpica/exserial.c @@ -201,6 +201,12 @@ acpi_ex_read_serial_bus(union acpi_operand_object *obj_desc, function = ACPI_READ; break; + case ACPI_ADR_SPACE_FIXED_HARDWARE: + + buffer_length = ACPI_FFH_INPUT_BUFFER_SIZE; + function = ACPI_READ; + break; + default: return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } |