[PATCH] PM / devfreq: fix missing unlock on error in exynos4_busfreq_pm_notifier_event()

From: Wei Yongjun
Date: Thu Feb 21 2013 - 23:33:59 EST

From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

Add the missing unlock before return from function
exynos4_busfreq_pm_notifier_event() in the error
handling case.

This issue introduced by commit 8fa938
(PM / devfreq: exynos4_bus: honor RCU lock usage)

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
drivers/devfreq/exynos4_bus.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/devfreq/exynos4_bus.c b/drivers/devfreq/exynos4_bus.c
index 46d94e9..6208a68 100644
--- a/drivers/devfreq/exynos4_bus.c
+++ b/drivers/devfreq/exynos4_bus.c
@@ -974,6 +974,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
dev_err(data->dev, "%s: unable to find a min freq\n",
+ mutex_unlock(&data->lock);
return PTR_ERR(opp);
new_oppinfo.rate = opp_get_freq(opp);

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