Re: [PATCH 23/31] clk: mediatek: mux: Reverse check for existing clk to reduce nesting level

[Miles Chen]

> The clk registration code here currently does:
> 
>     if (IS_ERR_OR_NULL(clk_data->clks[mux->id])) {
>             ... do clk registration ...
>     }
> 
> This extra level of nesting wastes screen real estate.
> 
> Reduce the nesting level by reversing the conditional shown above.
> Other than that, functionality is not changed.
>
> 
> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>

Reviewed-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
> ---
>  drivers/clk/mediatek/clk-mux.c | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> Diff --git a/drivers/clk/mediatek/clk-mux.c b/drivers/clk/mediatek/clk-mux.c
> Index 01af6a52711a..70aa42144632 100644
> --- a/drivers/clk/mediatek/clk-mux.c
> +++ b/drivers/clk/mediatek/clk-mux.c
> @@ -208,16 +208,17 @@ int mtk_clk_register_muxes(const struct mtk_mux *muxes,
>  	for (i = 0; i < num; i++) {
>  		const struct mtk_mux *mux = &muxes[i];
>  
> -		if (IS_ERR_OR_NULL(clk_data->clks[mux->id])) {
> -			clk = mtk_clk_register_mux(mux, regmap, lock);
> +		if (!IS_ERR_OR_NULL(clk_data->clks[mux->id]))
> +			continue;
>  
> -			if (IS_ERR(clk)) {
> -				pr_err("Failed to register clk %s: %pe\n", mux->name, clk);
> -				continue;
> -			}
> +		clk = mtk_clk_register_mux(mux, regmap, lock);
>  
> -			clk_data->clks[mux->id] = clk;
> +		if (IS_ERR(clk)) {
> +			pr_err("Failed to register clk %s: %pe\n", mux->name, clk);
> +			continue;
>  		}
> +
> +		clk_data->clks[mux->id] = clk;
>  	}
>  
>  	return 0;
> -- 
> 2.35.0.rc0.227.g00780c9af4-goog