io:core: In iio_map_array_register() cleanup in case of error

In function iio_map_array_register() properly rewind in case of error.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/1606571059-13974-2-git-send-email-LinoSanfilippo@gmx.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 39c1d635dc031c87bc851e6a1dcf33a43e811c54..fe30bcb6a57b86492dfb7b07857d6203f7404f3a 100644 (file)
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -60,6 +60,8 @@ int iio_map_array_register(struct iio_dev *indio_dev, struct iio_map *maps)
                i++;
        }
 error_ret:
+       if (ret)
+               iio_map_array_unregister_locked(indio_dev);
        mutex_unlock(&iio_map_list_lock);
 
        return ret;