[PATCH -next] drm/rockchip: analogix_dp: add missing clk_disable_unprepare() on error

[Wei Yongjun]

From: Wei Yongjun <yongjun_...@trendmicro.com.cn>

Add the missing clk_disable_unprepare() before return in the
error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
---
 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c 
b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index e81e19a..89aadbf 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -96,6 +96,7 @@ static int rockchip_dp_poweron(struct analogix_dp_plat_data 
*plat_data)
        ret = rockchip_dp_pre_init(dp);
        if (ret < 0) {
                dev_err(dp->dev, "failed to dp pre init %d\n", ret);
+               clk_disable_unprepare(dp->pclk);
                return ret;
        }

@@ -272,6 +273,7 @@ static int rockchip_dp_init(struct rockchip_dp_device *dp)
        ret = rockchip_dp_pre_init(dp);
        if (ret < 0) {
                dev_err(dp->dev, "failed to pre init %d\n", ret);
+               clk_disable_unprepare(dp->pclk);
                return ret;
        }