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c144d19958
commit 5797c04400ee117bfe459ff1e468d0ea38054ab4 upstream. When an Icelake or Sapphire Rapids CPU isn't providing the maximum and critical thresholds for particular DIMM the driver should return an error to the userspace instead of giving it stale (best case) or wrong (the structure contains all zeros after kzalloc() call) data. The issue can be reproduced by binding the peci driver while the host is fully booted and idle, this makes PECI interaction unreliable enough. Fixes:73bc1b885d("hwmon: peci: Add dimmtemp driver") Fixes:621995b6d7("hwmon: (peci/dimmtemp) Add Sapphire Rapids support") Cc: stable@vger.kernel.org Signed-off-by: Paul Fertser <fercerpav@gmail.com> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20250123122003.6010-1-fercerpav@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 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.