korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 00:04:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

cpufreq: governor: CPUFREQ_GOV_LIMITS never fails

Browse Source 
None of the cpufreq governors currently in the tree will ever fail
an invocation of the ->governor() callback with the event argument
equal to CPUFREQ_GOV_LIMITS (unless invoked with incorrect arguments
which doesn't matter anyway) and had it ever failed, the result of
it wouldn't have been very clean.

For this reason, rearrange the code in the core to ignore the return
value of cpufreq_governor() when called with event equal to
CPUFREQ_GOV_LIMITS.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Rafael J. Wysocki 2016-05-14 00:59:27 +02:00
parent 1a695a905c
commit d6ff44d647
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/cpufreq/cpufreq.c
View File

@ -2054,7 +2054,11 @@ static int cpufreq_start_governor(struct cpufreq_policy *policy)
cpufreq_update_current_freq(policy);
ret = cpufreq_governor(policy, CPUFREQ_GOV_START);
return ret ? ret : cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
if (ret)
return ret;
cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
return 0;
}
int cpufreq_register_governor(struct cpufreq_governor *governor)
@ -2195,7 +2199,8 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
if (new_policy->governor == policy->governor) {
pr_debug("cpufreq: governor limits update\n");
return cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
return 0;
}
pr_debug("governor switch\n");