goto after return has not effect. Calling of_node_put() in case of some
errors and not for others is inconsistent.
Fixes: 51bdb50904b ("dm: Introduce xxx_get_dma_range()")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>