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From: Greg KH <gregkh@linuxfoundation.org>
To: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Cc: stefan.wahren@i2se.com, devel@driverdev.osuosl.org,
	f.fainelli@gmail.com, sbranden@broadcom.com, rjui@broadcom.com,
	linux-kernel@vger.kernel.org, eric@anholt.net,
	bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] Staging: vc04_services: Cleanup in ctrl_set_bitrate()
Date: Sat, 20 Apr 2019 21:51:03 +0200	[thread overview]
Message-ID: <20190420195103.GA18489@kroah.com> (raw)
In-Reply-To: <20190420165644.11892-1-madhumithabiw@gmail.com>

On Sat, Apr 20, 2019 at 11:56:44AM -0500, Madhumitha Prabakaran wrote:
> Remove unnecessary variable and replace return type.
> In addition to that align the function parameters with parentheses to
> maintain Linux coding style.
> 
> Issue suggested by Coccinelle.
> 
> Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
> 
> ---
> Changes in v2
> 
> 1) Fix my own error of removing function call from the variable.
> 2) Align the function parameters with parentheses.
> 
> ---
> ---
>  .../staging/vc04_services/bcm2835-camera/controls.c    | 10 ++++------
>  1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> index e39ab5fae724..71eb349c3138 100644
> --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
> +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> @@ -607,18 +607,16 @@ 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;
> +	vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
> +				      mmal_ctrl->mmal_id, &ctrl->val,
> +				      sizeof(ctrl->val));
> +	return 0;
>  }

Why does this function even return anything at all if it can not fail?

Why not return the value that vchiq_mmal_port_parameter_set() returned?

thanks,

greg k-h

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Cc: eric@anholt.net, stefan.wahren@i2se.com, f.fainelli@gmail.com,
	rjui@broadcom.com, sbranden@broadcom.com,
	bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, devel@driverdev.osuosl.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] Staging: vc04_services: Cleanup in ctrl_set_bitrate()
Date: Sat, 20 Apr 2019 21:51:03 +0200	[thread overview]
Message-ID: <20190420195103.GA18489@kroah.com> (raw)
In-Reply-To: <20190420165644.11892-1-madhumithabiw@gmail.com>

On Sat, Apr 20, 2019 at 11:56:44AM -0500, Madhumitha Prabakaran wrote:
> Remove unnecessary variable and replace return type.
> In addition to that align the function parameters with parentheses to
> maintain Linux coding style.
> 
> Issue suggested by Coccinelle.
> 
> Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
> 
> ---
> Changes in v2
> 
> 1) Fix my own error of removing function call from the variable.
> 2) Align the function parameters with parentheses.
> 
> ---
> ---
>  .../staging/vc04_services/bcm2835-camera/controls.c    | 10 ++++------
>  1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> index e39ab5fae724..71eb349c3138 100644
> --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
> +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
> @@ -607,18 +607,16 @@ 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;
> +	vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
> +				      mmal_ctrl->mmal_id, &ctrl->val,
> +				      sizeof(ctrl->val));
> +	return 0;
>  }

Why does this function even return anything at all if it can not fail?

Why not return the value that vchiq_mmal_port_parameter_set() returned?

thanks,

greg k-h

  reply	other threads:[~2019-04-20 19:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-20 16:56 [PATCH v2] Staging: vc04_services: Cleanup in ctrl_set_bitrate() Madhumitha Prabakaran
2019-04-20 16:56 ` Madhumitha Prabakaran
2019-04-20 19:51 ` Greg KH [this message]
2019-04-20 19:51   ` Greg KH
2019-04-23 13:36   ` Madhumitha Prabakaran
2019-04-23 13:36     ` Madhumitha Prabakaran

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