• L
    ACPICA: Tables: Fix regression introduced by a too early mechanism enabling · 2ea65321
    Lv Zheng 提交于
    In the Linux kernel, acpi_get_table() "clones" haven't been fully
    balanced by acpi_put_table() invocations.  In upstream ACPICA, due to
    the design change, there are also unbalanced acpi_get_table_by_index()
    invocations requiring special care.
    
    acpi_get_table() reference counting mismatches may occor due to that
    and printing error messages related to them is not useful at this
    point.  The strict balanced validation count check should only be
    enabled after confirming that all invocations are safe and aligned
    with their designed purposes.
    
    Thus this patch removes the error value returned by acpi_tb_get_table()
    in that case along with the accompanying error message to fix the
    issue.
    
    Fixes: 174cc718 (ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel)
    Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
    Reported-by: NAnush Seetharaman <anush.seetharaman@intel.com>
    Reported-by: NDan Williams <dan.j.williams@intel.com>
    Signed-off-by: NLv Zheng <lv.zheng@intel.com>
    [ rjw: Changelog ]
    Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
    2ea65321
tbutils.c 14.1 KB