From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 24 Oct 2012 07:13:00 +0000 (+0100)
Subject: iio:dac:ad5449: unlock on error path
X-Git-Tag: android-x86-4.4-r1~1805^2~668^2~5
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=0c88d23c66884e6ac2995d4d7f881b41e0cfd27c;p=android-x86%2Fkernel.git

iio:dac:ad5449: unlock on error path

There is an unlock missing on this error path.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index 5b43030fe6e3..0ee6f8eeba8d 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -124,12 +124,13 @@ static int ad5449_read(struct iio_dev *indio_dev, unsigned int addr,
 
 	ret = spi_sync(st->spi, &msg);
 	if (ret < 0)
-		return ret;
+		goto out_unlock;
 
 	*val = be16_to_cpu(st->data[1]);
-	mutex_unlock(&indio_dev->mlock);
 
-	return 0;
+out_unlock:
+	mutex_unlock(&indio_dev->mlock);
+	return ret;
 }
 
 static int ad5449_read_raw(struct iio_dev *indio_dev,