From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 11 Jul 2012 06:34:00 +0000 (+0100)
Subject: iio: double unlock on error path
X-Git-Tag: firefly_0821_release~3680^2~2356^2~298^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e59b9afecf7ddf52d31d24e800b473f19c23cfe0;p=firefly-linux-kernel-4.4.55.git

iio: double unlock on error path

We should be holding the mutex when we goto error_free_chans.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index e2aded04996b..b5afc2ff34fd 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -198,11 +198,12 @@ struct iio_channel *iio_channel_get_all(const char *name)
 		iio_device_get(chans[mapind].indio_dev);
 		mapind++;
 	}
-	mutex_unlock(&iio_map_list_lock);
 	if (mapind == 0) {
 		ret = -ENODEV;
 		goto error_free_chans;
 	}
+	mutex_unlock(&iio_map_list_lock);
+
 	return chans;
 
 error_free_chans: