[ Upstream commitae41d925c7
] After calling clk_prepare_enable(), clk_disable_unprepare() need be called when calling regmap_write() failed. Fixes:1a0f7ed3ab
("drm/rockchip: cdn-dp: add cdn DP support for rk3399") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210519134928.2696617-1-yangyingliang@huawei.com Signed-off-by: Sasha Levin <sashal@kernel.org>