[PATCH 5.6 114/126] iio: imu: st_lsm6dsx: unlock on error in st_lsm6dsx_shub_write_raw()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpen...@oracle.com>

commit 115c215a7e5753ddf982c8760ce7904dd3fbb8ae upstream.

We need to release a lock if st_lsm6dsx_check_odr() fails, we can't
return directly.

Fixes: 76551a3c3df1 ("iio: imu: st_lsm6dsx: specify slave odr in slv_odr")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
@@ -544,8 +544,10 @@ st_lsm6dsx_shub_write_raw(struct iio_dev
 
                        ref_sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_ACC]);
                        odr = st_lsm6dsx_check_odr(ref_sensor, val, &odr_val);
-                       if (odr < 0)
-                               return odr;
+                       if (odr < 0) {
+                               err = odr;
+                               goto release;
+                       }
 
                        sensor->ext_info.slv_odr = val;
                        sensor->odr = odr;
@@ -557,6 +559,7 @@ st_lsm6dsx_shub_write_raw(struct iio_dev
                break;
        }
 
+release:
        iio_device_release_direct_mode(iio_dev);
 
        return err;