From: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Date: Mon, 21 Sep 2015 18:23:52 +0000 (+0200)
Subject: PM / devfreq: Fix governor_store()
X-Git-Tag: v4.3-rc5~14^2~1^2~1
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=14a21e7ba8cf6eab968310c92ca19a00f13ce3d9;p=linux.git

PM / devfreq: Fix governor_store()

Writing the currently set governor into sysfs currently
seems to fail.
Fix this by setting the return code to zero before
leaving governor_store().

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 3927ed9fdbd5..4f1b0cebe9a4 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -795,8 +795,10 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
 		ret = PTR_ERR(governor);
 		goto out;
 	}
-	if (df->governor == governor)
+	if (df->governor == governor) {
+		ret = 0;
 		goto out;
+	}
 
 	if (df->governor) {
 		ret = df->governor->event_handler(df, DEVFREQ_GOV_STOP, NULL);