linux-kernel - Re: [PATCH 5/8] [media] tvp514x: Check v4l2_of_parse

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Message-ID: <20160109230148.GF576@valkosipuli.retiisi.org.uk>
Date:	Sun, 10 Jan 2016 01:01:48 +0200
From:	Sakari Ailus <sakari.ailus@....fi>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	"Prabhakar\"" <prabhakar.csengg@...il.com>,
	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Hans Verkuil <hans.verkuil@...co.com>,
	linux-media@...r.kernel.org
Subject: Re: [PATCH 5/8] [media] tvp514x: Check v4l2_of_parse_endpoint()
 return value

On Thu, Jan 07, 2016 at 03:27:19PM -0300, Javier Martinez Canillas wrote:
> The v4l2_of_parse_endpoint() function can fail so check the return value.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> ---
> 
>  drivers/media/i2c/tvp514x.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
> index 7fa5f1e4fe37..7a1e20feade9 100644
> --- a/drivers/media/i2c/tvp514x.c
> +++ b/drivers/media/i2c/tvp514x.c
> @@ -1013,11 +1013,13 @@ tvp514x_get_pdata(struct i2c_client *client)
>  	if (!endpoint)
>  		return NULL;
>  
> +	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))

Same as in patch 6.

> +		goto done;
> +
>  	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
>  	if (!pdata)
>  		goto done;
>  
> -	v4l2_of_parse_endpoint(endpoint, &bus_cfg);
>  	flags = bus_cfg.bus.parallel.flags;
>  
>  	if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)

-- 
Sakari Ailus
e-mail: sakari.ailus@....fi	XMPP: sailus@...iisi.org.uk