clk_register_composite() and clk_register_factors() return ERR_PTR on error.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>