[PATCH v7 19/23] drm/mediatek: Return error if MDP RDMA failed to enable the clock

[CK Hu (胡俊光)]

Hi, Hsiao-chien:

On Fri, 2023-10-06 at 15:38 +0800, Hsiao Chien Sung wrote:
> Return the result of clk_prepare_enable() instead of
> always returns 0.

Reviewed-by: CK Hu <ck.hu at mediatek.com>

> 
> Fixes: f8946e2b6bb2 ("drm/mediatek: Add display MDP RDMA support for
> MT8195")
> 
> 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 c3adaeefd551..c7233d0ac210 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> @@ -246,8 +246,7 @@ 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)