From: Bob Moore <robert.moore@xxxxxxxxx> ACPICA commit 6b58810b9aad7358fbf1a0f4057fefa8d29838d3 This change fixes two instances where the repair code made an incorrect assumption about how reference counts are assigned to package objects. Resolves issues where a warning was issued about a "large reference count" -- which usually indicates an attempt to delete an object that has previously been poisoned and released into the object cache. Link: https://github.com/acpica/acpica/commit/6b58810b Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> --- drivers/acpi/acpica/nsrepair.c | 16 +++------------- drivers/acpi/acpica/nsrepair2.c | 6 +----- 2 files changed, 4 insertions(+), 18 deletions(-) diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index 3831626..418ef2a 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -290,22 +290,12 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info, /* Object was successfully repaired */ if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { - /* - * The original object is a package element. We need to - * decrement the reference count of the original object, - * for removing it from the package. - * - * However, if the original object was just wrapped with a - * package object as part of the repair, we don't need to - * change the reference count. - */ + + /* Update reference count of new object */ + if (!(info->return_flags & ACPI_OBJECT_WRAPPED)) { new_object->common.reference_count = return_object->common.reference_count; - - if (return_object->common.reference_count > 1) { - return_object->common.reference_count--; - } } ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index 3522654..06037e0 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -403,16 +403,12 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info, return (status); } - /* Take care with reference counts */ - if (original_element != *element_ptr) { - /* Element was replaced */ + /* Update reference count of new object */ (*element_ptr)->common.reference_count = original_ref_count; - - acpi_ut_remove_reference(original_element); } element_ptr++; -- 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
