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Message-ID: <517db2b8-6be0-2f2b-f98e-ca5ca27d0603@linaro.org>
Date:   Tue, 26 Apr 2022 00:08:18 +0300
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Subject: Re: [PATCH] drm/msm/dpu: fix error check return value of
 irq_of_parse_and_map()
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To:     Stephen Boyd <swboyd@chromium.org>, cgel.zte@gmail.com,
        robdclark@gmail.com, sean@poorly.run
Cc:     quic_abhinavk@quicinc.com, airlied@linux.ie, daniel@ffwll.ch,
        bjorn.andersson@linaro.org,
        angelogioacchino.delregno@somainline.org, tiny.windzz@gmail.com,
        architt@codeaurora.org, jsanka@codeaurora.org,
        skolluku@codeaurora.org, ryadav@codeaurora.org,
        linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
        freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Lv Ruyi <lv.ruyi@zte.com.cn>, Zeal Robot <zealci@zte.com.cn>
References: <20220425090947.3498897-1-lv.ruyi@zte.com.cn>
 <CAE-0n50fs1fFQcwMCq_x_UG8ZJKprjcYKwcy1+1ckD--XE28+g@mail.gmail.com>
From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
In-Reply-To: <CAE-0n50fs1fFQcwMCq_x_UG8ZJKprjcYKwcy1+1ckD--XE28+g@mail.gmail.com>
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On 25/04/2022 23:10, Stephen Boyd wrote:
> Quoting cgel.zte@gmail.com (2022-04-25 02:09:47)
>> From: Lv Ruyi <lv.ruyi@zte.com.cn>
>>
>> The irq_of_parse_and_map() function returns 0 on failure, and does not
>> return a negative value anyhow, so never enter this conditional branch.
>>
>> Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
>> Reported-by: Zeal Robot <zealci@zte.com.cn>
>> Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
>> ---
> 
> Question still stands why we can't use platform device APIs.

Let's do a separate pass and replace all of functions with platform 
device API.

> Reviewed-by: Stephen Boyd <swboyd@chromium.org>


-- 
With best wishes
Dmitry