1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c
index 3f37f3b3f268..c5f86d8caca3 100644
--- a/drivers/devfreq/exynos/exynos4_bus.c
+++ b/drivers/devfreq/exynos/exynos4_bus.c
@@ -974,6 +974,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
                         rcu_read_unlock();
                         dev_err(data->dev, "%s: unable to find a min freq\n",
                                 __func__);
+                        mutex_unlock(&data->lock);
                         return PTR_ERR(opp);
                 }
                 new_oppinfo.rate = opp_get_freq(opp);