Re: [PATCH -next] drm: omapdrm: dss: simplify the return expression of hdmi_init_pll_data

From: Tomi Valkeinen
Date: Mon Sep 21 2020 - 09:40:33 EST


Hi,

On 21/09/2020 16:10, Qinglang Miao wrote:
> Simplify the return expression.
>
> Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
> ---
> drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> index cf2b000f3..c3e85b636 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> @@ -131,7 +131,6 @@ static int hdmi_init_pll_data(struct dss_device *dss,
> {
> struct dss_pll *pll = &hpll->pll;
> struct clk *clk;
> - int r;
>
> clk = devm_clk_get(&pdev->dev, "sys_clk");
> if (IS_ERR(clk)) {
> @@ -151,11 +150,7 @@ static int hdmi_init_pll_data(struct dss_device *dss,
>
> pll->ops = &hdmi_pll_ops;
>
> - r = dss_pll_register(dss, pll);
> - if (r)
> - return r;
> -
> - return 0;
> + return dss_pll_register(dss, pll);
> }
>
> int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
>

I like it more when there's a return 0 at the end of the function, especially in functions where
there are multiple cases of if(...) return r. It's more easily readable, at least to my eyes.

Tomi

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