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cpufreq/amd-pstate: Add missing NULL ptr check in amd_pstate_update

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Check if policy is NULL before dereferencing it in amd_pstate_update.

Fixes: e8f555daac ("cpufreq/amd-pstate: fix setting policy current frequency value")
Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20250205112523.201101-11-dhananjay.ugwekar@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
This commit is contained in:
Dhananjay Ugwekar 2025-02-05 11:25:21 +00:00 committed by Mario Limonciello
parent b899434857
commit 426db24d4d
1 changed files with 3 additions and 0 deletions
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3
drivers/cpufreq/amd-pstate.c
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@ -551,6 +551,9 @@ static void amd_pstate_update(struct amd_cpudata *cpudata, u8 min_perf,
struct cpufreq_policy *policy = cpufreq_cpu_get(cpudata->cpu);
u8 nominal_perf = READ_ONCE(cpudata->nominal_perf);
if (!policy)
return;
des_perf = clamp_t(u8, des_perf, min_perf, max_perf);
policy->cur = perf_to_freq(cpudata, des_perf);