diff options
| author | Olof Johansson <olof@lixom.net> | 2013-01-27 22:07:11 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-27 22:07:20 -0800 |
| commit | 6b914c998787d65022e80d6262dfd0edef58cadb (patch) | |
| tree | ec9d9605ae08e6e40664c4302a181979ab4fe1d3 /drivers/cpufreq/cpufreq-cpu0.c | |
| parent | 1f87a404d02a96519284e1928445ca5cfe9667db (diff) | |
| parent | 949db153b6466c6f7cad5a427ecea94985927311 (diff) | |
Merge tag 'v3.8-rc5' into next/cleanup
Linux 3.8-rc5
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/cpufreq/cpufreq-cpu0.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq-cpu0.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 52bf36d599f5..debc5a7c8db6 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; |