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From:   Robert Foss <robert.foss@linaro.org>
Date:   Mon, 22 Mar 2021 10:36:56 +0100
Message-ID: <CAG3jFysRwmx5mN5kHh-L0N2Az_csitr0ckovxJvCAFsfo96ZXA@mail.gmail.com>
Subject: Re: [PATCH v6 2/5] drm/bridge: anx7625: fix not correct return value
To:     Xin Ji <xji@analogixsemi.com>
Cc:     Nicolas Boichat <drinkcat@google.com>,
        Andrzej Hajda <a.hajda@samsung.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Jonas Karlman <jonas@kwiboo.se>,
        Jernej Skrabec <jernej.skrabec@siol.net>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Boris Brezillon <boris.brezillon@collabora.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Hsin-Yi Wang <hsinyi@chromium.org>, Torsten Duwe <duwe@lst.de>,
        Vasily Khoruzhick <anarsoul@gmail.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Sheng Pan <span@analogixsemi.com>,
        Bernie Liang <bliang@analogixsemi.com>,
        Zhen Li <zhenli@analogixsemi.com>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        devel@driverdev.osuosl.org
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Precedence: bulk

Hey Xin,

This patch looks good to me.

Reviewed-by: Robert Foss <robert.foss@linaro.org>

On Fri, 19 Mar 2021 at 07:33, Xin Ji <xji@analogixsemi.com> wrote:
>
> At some time, the original code may return non zero value, force return 0
> if operation finished.
>
> Signed-off-by: Xin Ji <xji@analogixsemi.com>
> ---
>  drivers/gpu/drm/bridge/analogix/anx7625.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index 65cc05982f82..04536cc7afe7 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -189,10 +189,10 @@ static int wait_aux_op_finish(struct anx7625_data *ctx)
>                                AP_AUX_CTRL_STATUS);
>         if (val < 0 || (val & 0x0F)) {
>                 DRM_DEV_ERROR(dev, "aux status %02x\n", val);
> -               val = -EIO;
> +               return -EIO;
>         }
>
> -       return val;
> +       return 0;
>  }
>
>  static int anx7625_video_mute_control(struct anx7625_data *ctx,
> --
> 2.25.1
>