linux-kernel - Re: [PATCH]video:gspca.c Fix warning: case value '7' not in enumerated type 'enum v4l2

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Message-ID: <4C357C5C.8010602@gmail.com>
Date:	Thu, 08 Jul 2010 00:21:00 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Jean-Francois Moine <moinejf@...e.fr>
CC:	linux-media@...r.kernel.org, mchehab@...radead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH]video:gspca.c Fix  warning: case value '7' not in enumerated
 type 'enum v4l2_memory'

On 07/07/2010 11:40 PM, Jean-Francois Moine wrote:
> On Wed,  7 Jul 2010 21:46:18 -0700
> "Justin P. Mattock"<justinmattock@...il.com>  wrote:
>
>> This fixes a warning I'm seeing when building:
>>    CC [M]  drivers/media/video/gspca/gspca.o
>> drivers/media/video/gspca/gspca.c: In function 'vidioc_reqbufs':
>> drivers/media/video/gspca/gspca.c:1508:2: warning: case value '7' not
>> in enumerated type 'enum v4l2_memory'
>
> Hi Justin,
>
> I don't agree with your patch: the value GSPCA_MEMORY_READ must not be
> seen by user applications.
>
> The warning may be simply fixed by (change the line numbers):
>
> --- gspca.c~	2010-07-08 08:15:14.000000000 +0200
> +++ gspca.c	2010-07-08 08:28:52.000000000 +0200
> @@ -1467,7 +1467,8 @@ static int vidioc_reqbufs(struct file *f
>   	struct gspca_dev *gspca_dev = priv;
>   	int i, ret = 0, streaming;
>
> -	switch (rb->memory) {
> +	i = rb->memory;			/* (avoid compilation warning) */
> +	switch (i) {
>   	case GSPCA_MEMORY_READ:			/* (internal call) */
>   	case V4L2_MEMORY_MMAP:
>   	case V4L2_MEMORY_USERPTR:
>
> Cheers.
>


o.k. buddy.. make sense with the userspace etc..
Anyways looks good, builds without a warning..

Tested-By: Justin P. Mattock <justinmattock@...il.com>

cheers as well,

Justin P. Mattock
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