From: Bob Moore <robert.moore@xxxxxxxxx> ACPICA commit 73f7fab1376d5dbfda24cf51c1bb04df0d31b48e Intention is to improve debugging by clarifying which method has caused the error, in acpi_evaluate_object_typed. Link: https://github.com/acpica/acpica/commit/73f7fab1 Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> --- drivers/acpi/acpica/nsxfeval.c | 39 +++++++++++++++++++++++++++++---------- 1 file changed, 29 insertions(+), 10 deletions(-) diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index c944ff5..538c616 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -85,6 +85,8 @@ acpi_evaluate_object_typed(acpi_handle handle, { acpi_status status; u8 free_buffer_on_error = FALSE; + acpi_handle target_handle; + char *full_pathname; ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); @@ -98,38 +100,51 @@ acpi_evaluate_object_typed(acpi_handle handle, free_buffer_on_error = TRUE; } + status = acpi_get_handle(handle, pathname, &target_handle); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + full_pathname = acpi_ns_get_external_pathname(target_handle); + if (!full_pathname) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + /* Evaluate the object */ - status = acpi_evaluate_object(handle, pathname, - external_params, return_buffer); + status = acpi_evaluate_object(target_handle, NULL, external_params, + return_buffer); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto exit; } - /* Type ANY means "don't care" */ + /* Type ANY means "don't care about return value type" */ if (return_type == ACPI_TYPE_ANY) { - return_ACPI_STATUS(AE_OK); + goto exit; } if (return_buffer->length == 0) { /* Error because caller specifically asked for a return value */ - ACPI_ERROR((AE_INFO, "No return value")); - return_ACPI_STATUS(AE_NULL_OBJECT); + ACPI_ERROR((AE_INFO, "%s did not return any object", + full_pathname)); + status = AE_NULL_OBJECT; + goto exit; } /* Examine the object type returned from evaluate_object */ if (((union acpi_object *)return_buffer->pointer)->type == return_type) { - return_ACPI_STATUS(AE_OK); + goto exit; } /* Return object type does not match requested type */ ACPI_ERROR((AE_INFO, - "Incorrect return type [%s] requested [%s]", + "Incorrect return type from %s - received [%s], requested [%s]", + full_pathname, acpi_ut_get_type_name(((union acpi_object *)return_buffer-> pointer)->type), acpi_ut_get_type_name(return_type))); @@ -147,7 +162,11 @@ acpi_evaluate_object_typed(acpi_handle handle, } return_buffer->length = 0; - return_ACPI_STATUS(AE_TYPE); + status = AE_TYPE; + +exit: + ACPI_FREE(full_pathname); + return_ACPI_STATUS(status); } ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
