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cpufreq: Use locking guard and __free() in cpufreq_update_policy()

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Instead of using cpufreq_cpu_acquire() and cpufreq_cpu_release() in
cpufreq_update_policy(), which is the last user of these functions,
make it use __free() for policy reference counting cleanup and the
"write" locking guard for policy locking.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/22654186.EfDdHjke4D@rjwysocki.net
This commit is contained in:
Rafael J. Wysocki
2025-03-28 21:44:50 +01:00
parent 973207ae3d
commit 9a74bfdfd0
1 changed files with 5 additions and 5 deletions
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10
drivers/cpufreq/cpufreq.c
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@@ -2780,23 +2780,23 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
*/
void cpufreq_update_policy(unsigned int cpu)
{
struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu);
struct cpufreq_policy *policy __free(put_cpufreq_policy);
policy = cpufreq_cpu_get(cpu);
if (!policy)
return;
guard(cpufreq_policy_write)(policy);
/*
* BIOS might change freq behind our back
* -> ask driver for current freq and notify governors about a change
*/
if (cpufreq_driver->get && has_target() &&
(cpufreq_suspended || WARN_ON(!cpufreq_verify_current_freq(policy, false))))
goto unlock;
return;
refresh_frequency_limits(policy);
unlock:
cpufreq_cpu_release(policy);
}
EXPORT_SYMBOL(cpufreq_update_policy);