27 lines
979 B
Diff
27 lines
979 B
Diff
From f50ac94149bc07092ecf5b68558f02920436f77c Mon Sep 17 00:00:00 2001
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From: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
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Date: Wed, 5 Feb 2025 11:25:21 +0000
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Subject: 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.
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Fixes: e8f555daacd3 ("cpufreq/amd-pstate: fix setting policy current frequency value")
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Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
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Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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drivers/cpufreq/amd-pstate.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/cpufreq/amd-pstate.c
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+++ b/drivers/cpufreq/amd-pstate.c
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@@ -551,6 +551,9 @@ static void amd_pstate_update(struct amd
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struct cpufreq_policy *policy = cpufreq_cpu_get(cpudata->cpu);
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u8 nominal_perf = READ_ONCE(cpudata->nominal_perf);
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+ if (!policy)
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+ return;
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+
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des_perf = clamp_t(u8, des_perf, min_perf, max_perf);
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policy->cur = perf_to_freq(cpudata, des_perf);
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