If we of_find_node_by_name() then we must of_node_put() too.
Signed-off-by: NPhil Carmody <pc+lkml@asdf.org>
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>