From: Zhang Changzhong <zhangchangzhong@huawei.com>Date: Mon, 20 Jul 2020 19:12:33 +0800> Because clk_prepare_enable and clk_disable_unprepare already> checked NULL clock parameter, so the additional checks are> unnecessary, just remove them.> > Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>Applied.