diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 845687884c1e..bbd5c2164ab6 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -756,7 +756,12 @@ static struct kobj_type ktype_cpufreq = { .release = cpufreq_sysfs_release, }; - +/* + * Returns: + * Negative: Failure + * 0: Success + * Positive: When we have a managed CPU and the sysfs got symlinked + */ int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy, struct sys_device *sys_dev) { @@ -817,7 +822,11 @@ int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy, */ if (cpufreq_driver->exit) cpufreq_driver->exit(policy); - return ret; + + if (!ret) + return 1; + else + return ret; } } #endif @@ -1001,8 +1010,13 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) CPUFREQ_START, policy); ret = cpufreq_add_dev_policy(cpu, policy, sys_dev); - if (ret) + if (ret) { + if (ret > 0) + /* This is a managed cpu, symlink created, + exit with 0 */ + ret = 0; goto err_unlock_policy; + } ret = cpufreq_add_dev_interface(cpu, policy, sys_dev); if (ret) |