hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

cpufreq: update user_policy.* on success 

'user_policy' caches properties of a policy that are set by userspace.
And these must be updated only if cpufreq core was successful in
updating them based on request from user space.

In store_scaling_governor(), we are updating user_policy.policy and
user_policy.governor even if cpufreq_set_policy() failed. That's
incorrect.

Fix this by updating user_policy.* only if we were successful in
updating the properties.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2015-08-03 08:36:16 +05:30 committed by Rafael J. Wysocki
parent 8fa5b631f3
commit 14ca0bdfdd
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/cpufreq/cpufreq.c
View File

@ -671,14 +671,12 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
return -EINVAL;
ret = cpufreq_set_policy(policy, &new_policy);
if (ret)
return ret;
policy->user_policy.policy = policy->policy;
policy->user_policy.governor = policy->governor;
if (ret)
return ret;
else
return count;
return count;
}
/**