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ACPICA: Disassembler: ignore AE_ALREADY_EXISTS status when parsing create operators 

ACPICA commit cd66d0a50fdc9cc4dcd998e08e7aa3c4154bea2d

Disassembler is intended to emit existing ASL code as-is. Therefore,
error messages emitted during disassembly should be ignored or
handled in a way such that the disassembler can continue to parse the
AML. This change ignores AE_ALREADY_EXISTS errors during the deferred
Op parsing for create operators in order to complete parsing ASL
termlists.

Link: https://github.com/acpica/acpica/commit/cd66d0a5
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Erik Kaneda 2020-05-04 17:46:51 -07:00 committed by Rafael J. Wysocki
parent 2c1779f5ad
commit 034fdaa508
1 changed files with 4 additions and 1 deletions
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5
drivers/acpi/acpica/dsfield.c
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@ -177,7 +177,10 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
arg->common.value.string, ACPI_TYPE_ANY,
ACPI_IMODE_LOAD_PASS1, flags,
walk_state, &node);
if (ACPI_FAILURE(status)) {
if ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE)
&& status == AE_ALREADY_EXISTS) {
status = AE_OK;
} else if (ACPI_FAILURE(status)) {
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
arg->common.value.string, status);
return_ACPI_STATUS(status);