cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()

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cpufreq_cpu_get_raw() may return NULL if the cpu is not in
policy->cpus cpu mask and it will cause null pointer dereference,
so check NULL for cppc_get_cpu_cost().

Fixes: 740fcdc2c2 ("cpufreq: CPPC: Register EM based on efficiency class information")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

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Jinjie Ruan 2024-10-30 16:24:49 +08:00 • committed by Viresh Kumar

parent a78e720756

commit 1a1374bb8c

1 changed files with 3 additions and 0 deletions

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drivers/cpufreq/cppc_cpufreq.c

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