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authorViresh Kumar <viresh.kumar@linaro.org>2013-05-17 16:09:09 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-05-27 13:24:02 +0200
commit2361be23666232dbb4851a527f466c4cbf5340fc (patch)
tree982ed55a3f4b097ddf9cffa7715b5e55db718466 /drivers/cpufreq/cpufreq_governor.c
parent72a4ce340a7ebf39e1c6fdc8f5feb4f974d6c635 (diff)
cpufreq: Don't create empty /sys/devices/system/cpu/cpufreq directory
When we don't have any file in cpu/cpufreq directory we shouldn't create it. Specially with the introduction of per-policy governor instance patchset, even governors are moved to cpu/cpu*/cpufreq/governor-name directory and so this directory is just not required. Lets have it only when required. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
-rw-r--r--drivers/cpufreq/cpufreq_governor.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index b6cfd55d8266..7532570c42b4 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -231,6 +231,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return rc;
}
+ if (!have_governor_per_policy())
+ WARN_ON(cpufreq_get_global_kobject());
+
rc = sysfs_create_group(get_governor_parent_kobj(policy),
get_sysfs_attr(dbs_data));
if (rc) {
@@ -269,6 +272,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
sysfs_remove_group(get_governor_parent_kobj(policy),
get_sysfs_attr(dbs_data));
+ if (!have_governor_per_policy())
+ cpufreq_put_global_kobject();
+
if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
(policy->governor->initialized == 1)) {
struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;