[PATCH -next] drm/hisilicon: Fix error handling of ade_power_up()

[Wei Yongjun]

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

Fix the reset_control_deassert() fail and clk_prepare_enable() fail
error handling of ade_power_up().

Signed-off-by: Wei Yongjun <yongjun_...@trendmicro.com.cn>
---
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c 
b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index c3707d4..e2bd1e6 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -258,18 +258,24 @@ static int ade_power_up(struct ade_hw_ctx *ctx)
        ret = reset_control_deassert(ctx->reset);
        if (ret) {
                DRM_ERROR("failed to deassert reset\n");
-               return ret;
+               goto err_reset;
        }
 
        ret = clk_prepare_enable(ctx->ade_core_clk);
        if (ret) {
                DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
-               return ret;
+               goto err_prepare_enable;
        }
 
        ade_init(ctx);
        ctx->power_on = true;
        return 0;
+
+err_prepare_enable:
+       reset_control_assert(ctx->reset);
+err_reset:
+       clk_disable_unprepare(ctx->media_noc_clk);
+       return ret;
 }
 
 static void ade_power_down(struct ade_hw_ctx *ctx)