RE: [EXT] [PATCH] drm: bridge: dw_hdmi: Audio: fix returnvar.cocci warnings

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> -----Original Message-----
> From: kernel test robot <lkp@xxxxxxxxx>
> Sent: 2022年4月21日 23:10
> To: Sandor Yu <sandor.yu@xxxxxxx>
> Cc: kbuild-all@xxxxxxxxxxxx; Linux Memory Management List
> <linux-mm@xxxxxxxxx>; Robert Foss <robert.foss@xxxxxxxxxx>; S.J. Wang
> <shengjiu.wang@xxxxxxx>; Neil Armstrong <narmstrong@xxxxxxxxxxxx>;
> Andrzej Hajda <andrzej.hajda@xxxxxxxxx>; Laurent Pinchart
> <Laurent.pinchart@xxxxxxxxxxxxxxxx>; Jonas Karlman <jonas@xxxxxxxxx>;
> Jernej Skrabec <jernej.skrabec@xxxxxxxxx>; David Airlie <airlied@xxxxxxxx>;
> Daniel Vetter <daniel@xxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx;
> linux-kernel@xxxxxxxxxxxxxxx
> Subject: [EXT] [PATCH] drm: bridge: dw_hdmi: Audio: fix returnvar.cocci
> warnings
> 
> Caution: EXT Email
> 
> From: kernel test robot <lkp@xxxxxxxxx>
> 
> drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c:80:5-8: Unneeded
> variable: "ret". Return "0" on line 94
> drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c:105:5-8: Unneeded
> variable: "ret". Return "0" on line 112
> 
> 
>  Remove unneeded variable used to store return value.
> 
> Generated by: scripts/coccinelle/misc/returnvar.cocci
> 
> CC: Sandor Yu <Sandor.yu@xxxxxxx>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
> ---
> 
> tree:
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.ker
> nel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fnext%2Flinux-next.git&a
> mp;data=05%7C01%7CSandor.yu%40nxp.com%7C7028c89ce23940ff081408d
> a23a911c8%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637861
> 506299960569%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJ
> QIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&am
> p;sdata=P1pum2Ur3I8occ5f1WAnVhnIIGB0Q1HXc2GsRbUx8p0%3D&amp;res
> erved=0 master
> head:   65eb92e4c9f0a962656f131521f4fbc0d24c9d4c
> commit: d970ce303ff80ae57bbd3e784f2772dbf3056e0c [4441/5346] drm:
> bridge: dw_hdmi: Audio: Add General Parallel Audio (GPA) driver
> :::::: branch date: 8 hours ago
> :::::: commit date: 2 days ago
> 
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c |    6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c
> @@ -77,7 +77,6 @@ static int audio_hw_params(struct device
>                            struct hdmi_codec_params *params)  {
>         struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
> -       int ret = 0;
>         u8 ca;
> 
>         dw_hdmi_set_sample_rate(dw->data.hdmi, params->sample_rate);
> @@ -91,7 +90,7 @@ static int audio_hw_params(struct device
>                                    params->iec.status[0] &
> IEC958_AES0_NONAUDIO);
>         dw_hdmi_set_sample_width(dw->data.hdmi,
> params->sample_width);
> 
> -       return ret;
> +       return 0;
>  }
> 
>  static void audio_shutdown(struct device *dev, void *data) @@ -102,14
> +101,13 @@ static int audio_mute_stream(struct devi
>                              bool enable, int direction)  {
>         struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
> -       int ret = 0;
> 
>         if (!enable)
>                 dw_hdmi_audio_enable(dw->data.hdmi);
>         else
>                 dw_hdmi_audio_disable(dw->data.hdmi);
> 
> -       return ret;
> +       return 0;
>  }
> 
>  static int audio_get_eld(struct device *dev, void *data,

Reviewed-by: Sandor Yu <Sandor.yu@xxxxxxx>




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