[PATCH 6.6 0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value

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Subject: [PATCH 6.6 0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value
From: Anastasia Belova <abelova@xxxxxxxxxxxxx>
Date: Wed, 6 Nov 2024 21:19:57 +0300
Cc: Anastasia Belova <abelova@xxxxxxxxxxxxx>, lvc-project@xxxxxxxxxxxxxxxx, Huang Rui <ray.huang@xxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Viresh Kumar <viresh.kumar@xxxxxxxxxx>, linux-pm@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx

NULL-dereference is possible in amd_pstate_adjust_perf in 6.6 stable
release.

The problem has been fixed by the following upstream patch that was adapted
to 6.6. The patch couldn't be applied clearly but the changes made are 
minor.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Follow-Ups:
- Re: [PATCH 6.6 0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value
  - From: Anastasia Belova
- [PATCH 6.6 1/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value
  - From: Anastasia Belova

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