Simplify the return expression. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20201210135902.1548-1-zhengyongjun3@huawei.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>