Re: [PATCH v2] staging: media: imx: change imx_media_fim_set_stream() to return void

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On Tue, Jan 03, 2023 at 11:08:20PM +0530, Deepak R Varma wrote:
> At present, the function imx_media_fim_set_stream() always returns 0.
> So, convert it to be a function returning void instead. Issue identified
> using the returnvar.cocci Coccinelle semantic patch.
> 
> Signed-off-by: Deepak R Varma <drv@xxxxxxxxx>
> ---
> Changes in v2:
>    1. Convert the function return type from int to void. Suggested by
>       Fabio Estevam <festevam@xxxxxxxxx>
>    2. Update patch subject and log accordingly.

Hello,
May I request a review and feedback comment on this patch proposal please?

Thank you,
./drv

> 
> 
>  drivers/staging/media/imx/imx-media-csi.c | 7 ++-----
>  drivers/staging/media/imx/imx-media-fim.c | 8 +++-----
>  drivers/staging/media/imx/imx-media.h     | 6 +++---
>  3 files changed, 8 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
> index 5c3cc7de209d..44d87fe30d52 100644
> --- a/drivers/staging/media/imx/imx-media-csi.c
> +++ b/drivers/staging/media/imx/imx-media-csi.c
> @@ -779,11 +779,8 @@ static int csi_start(struct csi_priv *priv)
>  		goto idmac_stop;
> 
>  	/* start the frame interval monitor */
> -	if (priv->fim && priv->dest == IPU_CSI_DEST_IDMAC) {
> -		ret = imx_media_fim_set_stream(priv->fim, output_fi, true);
> -		if (ret)
> -			goto idmac_stop;
> -	}
> +	if (priv->fim && priv->dest == IPU_CSI_DEST_IDMAC)
> +		imx_media_fim_set_stream(priv->fim, output_fi, true);
> 
>  	ret = ipu_csi_enable(priv->csi);
>  	if (ret) {
> diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> index fb6590dcfc36..f456751f100a 100644
> --- a/drivers/staging/media/imx/imx-media-fim.c
> +++ b/drivers/staging/media/imx/imx-media-fim.c
> @@ -368,12 +368,11 @@ void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp)
>  }
> 
>  /* Called by the subdev in its s_stream callback */
> -int imx_media_fim_set_stream(struct imx_media_fim *fim,
> -			     const struct v4l2_fract *fi,
> -			     bool on)
> +void imx_media_fim_set_stream(struct imx_media_fim *fim,
> +			      const struct v4l2_fract *fi,
> +			      bool on)
>  {
>  	unsigned long flags;
> -	int ret = 0;
> 
>  	v4l2_ctrl_lock(fim->ctrl[FIM_CL_ENABLE]);
> 
> @@ -393,7 +392,6 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
>  	fim->stream_on = on;
>  out:
>  	v4l2_ctrl_unlock(fim->ctrl[FIM_CL_ENABLE]);
> -	return ret;
>  }
> 
>  int imx_media_fim_add_controls(struct imx_media_fim *fim)
> diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h
> index f679249d82e4..6f9a46573edd 100644
> --- a/drivers/staging/media/imx/imx-media.h
> +++ b/drivers/staging/media/imx/imx-media.h
> @@ -246,9 +246,9 @@ int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
>  /* imx-media-fim.c */
>  struct imx_media_fim;
>  void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp);
> -int imx_media_fim_set_stream(struct imx_media_fim *fim,
> -			     const struct v4l2_fract *frame_interval,
> -			     bool on);
> +void imx_media_fim_set_stream(struct imx_media_fim *fim,
> +			      const struct v4l2_fract *frame_interval,
> +			      bool on);
>  int imx_media_fim_add_controls(struct imx_media_fim *fim);
>  struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd);
>  void imx_media_fim_free(struct imx_media_fim *fim);
> --
> 2.34.1
> 





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