linux-kernel - Re: [PATCH v1 1/7] clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration

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Message-ID: <CAD=FV=UjwO25HeVtYvzqEdUxyA4ED18ZxcwEaYVzBGRFTa2FTw@mail.gmail.com>
Date:   Wed, 6 Nov 2019 20:24:41 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Taniya Das <tdas@...eaurora.org>
Cc:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        David Brown <david.brown@...aro.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Gross <agross@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Rob Herring <robh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v1 1/7] clk: qcom: clk-alpha-pll: Add support for Fabia
 PLL calibration

Hi,

On Thu, Oct 31, 2019 at 5:21 AM Taniya Das <tdas@...eaurora.org> wrote:
>
> @@ -1141,15 +1160,11 @@ static int alpha_pll_fabia_set_rate(struct clk_hw *hw, unsigned long rate,
>                                                 unsigned long prate)
>  {
>         struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
> -       u32 val, l, alpha_width = pll_alpha_width(pll);
> +       u32 l, alpha_width = pll_alpha_width(pll);
>         u64 a;
>         unsigned long rrate;
>         int ret = 0;
>
> -       ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
> -       if (ret)
> -               return ret;

My compiler happened to notice that with the change to this function:

drivers/clk/qcom/clk-alpha-pll.c:1166:6: error: unused variable 'ret'
[-Werror,-Wunused-variable]
        int ret = 0;

-Doug