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PSR work is using __psr_wait_for_idle_locked to ensure PSR exit is completed before continuing to PSR activation. __psr_wait_for_idle_locked is unlocking PSR mutex which allows PSR disable/enable and PSR pause/resume while PSR idle is being wait. PSR enable status is already checked after locking again PSR mutex but PSR pause counter check is missing. Due to this PSR work may continue to PSR activation even PSR is paused. Fix this by checking PSR pause counter in __psr_wait_for_idle_locked after PSR mutex is locked again. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Jeevan B <jeevan.b@intel.com> Link: https://lore.kernel.org/r/20250826074457.1992524-1-jouni.hogander@intel.com
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 reStructuredText 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.