linux-kernel - Re: [PATCH] Staging: vc04_services: Cleanup in ctrl_set

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Date:   Fri, 19 Apr 2019 23:49:47 +0200
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Madhumitha Prabakaran <madhumithabiw@...il.com>, eric@...olt.net,
        gregkh@...uxfoundation.org, f.fainelli@...il.com,
        rjui@...adcom.com, sbranden@...adcom.com,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Staging: vc04_services: Cleanup in ctrl_set_bitrate()

Hi Madhumitha,

Am 19.04.19 um 23:23 schrieb Madhumitha Prabakaran:
> Remove unnecessary variable and replace return type.
>
> Issue suggested by Coccinelle.
>
> Signed-off-by: Madhumitha Prabakaran <madhumithabiw@...il.com>
> ---
>  drivers/staging/vc04_services/bcm2835-camera/controls.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> index e39ab5fae724..f87fa7f61db3 100644
> --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
> +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> @@ -607,18 +607,13 @@ static int ctrl_set_bitrate(struct bm2835_mmal_dev *dev,
>  			    struct v4l2_ctrl *ctrl,
>  			    const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
>  {
> -	int ret;
>  	struct vchiq_mmal_port *encoder_out;
>  
>  	dev->capture.encode_bitrate = ctrl->val;
>  
>  	encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];
>  
> -	ret = vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
> -					    mmal_ctrl->mmal_id,
> -					    &ctrl->val, sizeof(ctrl->val));
> -	ret = 0;
> -	return ret;
> +	return 0;

i don't understand why we can remove here the function call.

Stefan

>  }
>  
>  static int ctrl_set_bitrate_mode(struct bm2835_mmal_dev *dev,