Commit 045149e6 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki

cpufreq: Clean up cpufreq_parse_governor()

Drop an unnecessary local variable from cpufreq_parse_governor()
and rearrange the code in there to make it easier to follow.
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent ae64f9bd
...@@ -604,16 +604,15 @@ static struct cpufreq_governor *find_governor(const char *str_governor) ...@@ -604,16 +604,15 @@ static struct cpufreq_governor *find_governor(const char *str_governor)
static int cpufreq_parse_governor(char *str_governor, unsigned int *policy, static int cpufreq_parse_governor(char *str_governor, unsigned int *policy,
struct cpufreq_governor **governor) struct cpufreq_governor **governor)
{ {
int err = -EINVAL;
if (cpufreq_driver->setpolicy) { if (cpufreq_driver->setpolicy) {
if (!strncasecmp(str_governor, "performance", CPUFREQ_NAME_LEN)) { if (!strncasecmp(str_governor, "performance", CPUFREQ_NAME_LEN)) {
*policy = CPUFREQ_POLICY_PERFORMANCE; *policy = CPUFREQ_POLICY_PERFORMANCE;
err = 0; return 0;
} else if (!strncasecmp(str_governor, "powersave", }
CPUFREQ_NAME_LEN)) {
if (!strncasecmp(str_governor, "powersave", CPUFREQ_NAME_LEN)) {
*policy = CPUFREQ_POLICY_POWERSAVE; *policy = CPUFREQ_POLICY_POWERSAVE;
err = 0; return 0;
} }
} else { } else {
struct cpufreq_governor *t; struct cpufreq_governor *t;
...@@ -621,26 +620,29 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy, ...@@ -621,26 +620,29 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy,
mutex_lock(&cpufreq_governor_mutex); mutex_lock(&cpufreq_governor_mutex);
t = find_governor(str_governor); t = find_governor(str_governor);
if (!t) {
if (t == NULL) {
int ret; int ret;
mutex_unlock(&cpufreq_governor_mutex); mutex_unlock(&cpufreq_governor_mutex);
ret = request_module("cpufreq_%s", str_governor); ret = request_module("cpufreq_%s", str_governor);
if (ret)
return -EINVAL;
mutex_lock(&cpufreq_governor_mutex); mutex_lock(&cpufreq_governor_mutex);
if (ret == 0)
t = find_governor(str_governor); t = find_governor(str_governor);
} }
if (t != NULL) { mutex_unlock(&cpufreq_governor_mutex);
if (t) {
*governor = t; *governor = t;
err = 0; return 0;
} }
mutex_unlock(&cpufreq_governor_mutex);
} }
return err;
return -EINVAL;
} }
/** /**
......
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