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-rw-r--r--drivers/cpufreq/cpufreq.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 8456878..bbd5c21 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)
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