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commitd7369ae1f4upstream. The function iio_device_register() was called in mma8452_probe(). But the function iio_device_unregister() was not called after a call of the function mma8452_set_freefall_mode() failed. Thus add the missed function call for one error case. Fixes:1a965d405f("drivers:iio:accel:mma8452: added cleanup provision in case of failure.") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>