hwmon: (max6650) Fix lock imbalance

Add omitted update_lock to one switch/case in set_div.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index 86142a858238..58f66be61b1f 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -418,6 +418,7 @@ static ssize_t set_div(struct device *dev, struct device_attribute *devattr,
                 data->count = 3;
                 break;
         default:
+                mutex_unlock(&data->update_lock);
                 dev_err(&client->dev,
                         "illegal value for fan divider (%d)\n", div);
                 return -EINVAL;