linux-kernel - Re: [PATCH v6 2/5] drm/bridge: anx7625: fix not correct return value

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Message-ID: <CAG3jFysRwmx5mN5kHh-L0N2Az_csitr0ckovxJvCAFsfo96ZXA@mail.gmail.com>
Date:   Mon, 22 Mar 2021 10:36:56 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Xin Ji <xji@...logixsemi.com>
Cc:     Nicolas Boichat <drinkcat@...gle.com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>, Torsten Duwe <duwe@....de>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sheng Pan <span@...logixsemi.com>,
        Bernie Liang <bliang@...logixsemi.com>,
        Zhen Li <zhenli@...logixsemi.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        devel@...verdev.osuosl.org
Subject: Re: [PATCH v6 2/5] drm/bridge: anx7625: fix not correct return value

Hey Xin,

This patch looks good to me.

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

On Fri, 19 Mar 2021 at 07:33, Xin Ji <xji@...logixsemi.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@...logixsemi.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
>