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- diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
- index 52bf36d..debc5a7 100644
- --- a/drivers/cpufreq/cpufreq-cpu0.c
- +++ b/drivers/cpufreq/cpufreq-cpu0.c
- @@ -71,12 +71,15 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
- }
- if (cpu_reg) {
- + rcu_read_lock();
- opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
- if (IS_ERR(opp)) {
- + rcu_read_unlock();
- pr_err("failed to find OPP for %ld\n", freq_Hz);
- return PTR_ERR(opp);
- }
- volt = opp_get_voltage(opp);
- + rcu_read_unlock();
- tol = volt * voltage_tolerance / 100;
- volt_old = regulator_get_voltage(cpu_reg);
- }
- @@ -236,12 +239,14 @@ static int cpu0_cpufreq_driver_init(void)
- */
- for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
- ;
- + rcu_read_lock();
- opp = opp_find_freq_exact(cpu_dev,
- freq_table[0].frequency * 1000, true);
- min_uV = opp_get_voltage(opp);
- opp = opp_find_freq_exact(cpu_dev,
- freq_table[i-1].frequency * 1000, true);
- max_uV = opp_get_voltage(opp);
- + rcu_read_unlock();
- ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV);
- if (ret > 0)
- transition_latency += ret * 1000;
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