linux-kernel - Re: [PATCH] drm/msm/hdmi: fix error check return value of irq_of_parse_and

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Message-ID: <CAE-0n53xBM+n__eKKGaCuB+3Ea4O+rNk2PUQbD2bjW3JS7YJBA@mail.gmail.com>
Date:   Mon, 25 Apr 2022 13:11:22 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     cgel.zte@...il.com, quic_abhinavk@...cinc.com, sean@...rly.run
Cc:     robdclark@...il.com, airlied@...ux.ie, daniel@...ll.ch,
        dmitry.baryshkov@...aro.org,
        angelogioacchino.delregno@...labora.com,
        daniel.thompson@...aro.org, linmq006@...il.com,
        christophe.jaillet@...adoo.fr, lv.ruyi@....com.cn,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] drm/msm/hdmi: fix error check return value of irq_of_parse_and_map()

Quoting cgel.zte@...il.com (2022-04-25 02:18:31)
> From: Lv Ruyi <lv.ruyi@....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: f6a8eaca0ea1 ("drm/msm/mdp5: use irqdomains")
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
> ---

This one fixes a commit that moved away from platform APIs!

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