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commit 3a8395b565b5b4f019b3dc182be4c4541eb35ac8 upstream. Commit8d36694245("PM: QoS: Add check to make sure CPU freq is non-negative") makes sure CPU freq is non-negative to avoid negative value converting to unsigned data type. However, when the value is PM_QOS_DEFAULT_VALUE, pm_qos_update_target specifically uses c->default_value which is set to FREQ_QOS_MIN/MAX_DEFAULT_VALUE when cpufreq_policy_alloc is executed, for this case handling. Adding check for PM_QOS_DEFAULT_VALUE to let default setting work will fix this problem. Fixes:8d36694245("PM: QoS: Add check to make sure CPU freq is non-negative") Link: https://lore.kernel.org/lkml/20230626035144.19717-1-Chung-kai.Yang@mediatek.com/ Link: https://lore.kernel.org/lkml/20230627071727.16646-1-Chung-kai.Yang@mediatek.com/ Link: https://lore.kernel.org/lkml/CAJZ5v0gxNOWhC58PHeUhW_tgf6d1fGJVZ1x91zkDdht11yUv-A@mail.gmail.com/ Signed-off-by: Chungkai Yang <Chung-kai.Yang@mediatek.com> Cc: 6.0+ <stable@vger.kernel.org> # 6.0+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.