[PATCH v9 19/23] drm/mediatek: Return error if MDP RDMA failed to enable the clock

[Hsiao Chien Sung]

Return the result of clk_prepare_enable() instead of
always returns 0.

Fixes: f8946e2b6bb2 ("drm/mediatek: Add display MDP RDMA support for MT8195")

Reviewed-by: CK Hu <ck.hu at mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
Signed-off-by: Hsiao Chien Sung <shawn.sung at mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
index 5746f06220c1..cb36a961786f 100644
--- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
@@ -247,8 +247,7 @@ int mtk_mdp_rdma_clk_enable(struct device *dev)
 {
 	struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);
 
-	clk_prepare_enable(rdma->clk);
-	return 0;
+	return clk_prepare_enable(rdma->clk);
 }
 
 void mtk_mdp_rdma_clk_disable(struct device *dev)
-- 
2.18.0