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thermal: cpu_cooling: get_level() can't fail

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The frequency passed to get_level() is returned by cpu_power_to_freq()
and it is guaranteed that get_level() can't fail.

Get rid of error code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Viresh Kumar 2017-04-25 15:57:21 +05:30 committed by Eduardo Valentin
parent 81ee14da10
commit da27f69d6a
1 changed files with 5 additions and 15 deletions
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20
drivers/thermal/cpu_cooling.c
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@ -119,22 +119,19 @@ static LIST_HEAD(cpufreq_cdev_list);
* @cpufreq_cdev: cpufreq_cdev for which the property is required
* @freq: Frequency
*
* Return: level on success, THERMAL_CSTATE_INVALID on error.
* Return: level corresponding to the frequency.
*/
static unsigned long get_level(struct cpufreq_cooling_device *cpufreq_cdev,
unsigned int freq)
{
struct freq_table *freq_table = cpufreq_cdev->freq_table;
unsigned long level;
for (level = 0; level <= cpufreq_cdev->max_level; level++) {
if (freq == cpufreq_cdev->freq_table[level].frequency)
return level;
if (freq > cpufreq_cdev->freq_table[level].frequency)
for (level = 1; level <= cpufreq_cdev->max_level; level++)
if (freq > freq_table[level].frequency)
break;
}
return THERMAL_CSTATE_INVALID;
return level - 1;
}
/**
@ -627,13 +624,6 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
target_freq = cpu_power_to_freq(cpufreq_cdev, normalised_power);
*state = get_level(cpufreq_cdev, target_freq);
if (*state == THERMAL_CSTATE_INVALID) {
dev_err_ratelimited(&cdev->device,
"Failed to convert %dKHz for cpu %d into a cdev state\n",
target_freq, policy->cpu);
return -EINVAL;
}
trace_thermal_power_cpu_limit(policy->related_cpus, target_freq, *state,
power);
return 0;