diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-04 01:19:41 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-07 23:02:50 +0200 |
| commit | 10659ab7b50e963429f1a681882404ca37aa584c (patch) | |
| tree | a72a4499d7a8034342a4d498ab120b78249bf17d /drivers/cpufreq/cpufreq.c | |
| parent | 71c3461ef7c67024792d283b88630245a6c169ba (diff) | |
cpufreq: Avoid double kobject_put() for the same kobject in error code path
The only case triggering a jump to the err_out_unregister label in
__cpufreq_add_dev() is when cpufreq_add_dev_interface() fails.
However, if cpufreq_add_dev_interface() fails, it calls kobject_put()
for the policy kobject in its error code path and since that causes
the kobject's refcount to become 0, the additional kobject_put() for
the same kobject under err_out_unregister and the
wait_for_completion() following it are pointless, so drop them.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index c8b2ca0f44ae..924d3f5df26d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1109,9 +1109,6 @@ err_out_unregister: } write_unlock_irqrestore(&cpufreq_driver_lock, flags); - kobject_put(&policy->kobj); - wait_for_completion(&policy->kobj_unregister); - err_set_policy_cpu: per_cpu(cpufreq_policy_cpu, cpu) = -1; cpufreq_policy_free(policy); |