Commit 721f9208 authored by Daniil Tatianin's avatar Daniil Tatianin Committed by Yongqiang Liu
Browse files

ACPICA: nsrepair: handle cases without a return value correctly

stable inclusion
from stable-v4.19.276
commit 331db828d34c37c466e4915fd50ea51415da143c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6TIG1
CVE: NA

--------------------------------

[ Upstream commit ca843a4c ]

Previously acpi_ns_simple_repair() would crash if expected_btypes
contained any combination of ACPI_RTYPE_NONE with a different type,
e.g | ACPI_RTYPE_INTEGER because of slightly incorrect logic in the
!return_object branch, which wouldn't return AE_AML_NO_RETURN_VALUE
for such cases.

Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.

Link: https://github.com/acpica/acpica/pull/811


Fixes: 61db45ca ("ACPICA: Restore code that repairs NULL package elements in return values.")
Signed-off-by: default avatarDaniil Tatianin <d-tatianin@yandex-team.ru>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarYongqiang Liu <liuyongqiang13@huawei.com>
parent 09f78ae4
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