After calling clk_prepare_enable(), clk_disable_unprepare() need be called when calling regmap_write() failed.

Fixes: 1a0f7ed3abe2 ("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 --- drivers/gpu/drm/rockchip/cdn-dp-core.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index a4a45daf93f2..6802d9b65f82 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -73,6 +73,7 @@ static int cdn_dp_grf_write(struct cdn_dp_device *dp, ret = regmap_write(dp->grf, reg, val); if (ret) { DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret); + clk_disable_unprepare(dp->grf_clk); return ret; }