linux-kernel - Re: [PATCH v3] staging: vt6655: ioctl.c

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Message-ID: <20140730132626.GI4856@mwanda>
Date:	Wed, 30 Jul 2014 16:26:26 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Anil Belur <askb23@...il.com>
Cc:	tklauser@...tanz.ch, bjorn@...k.no, silvio.fricke@...il.com,
	gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] staging: vt6655: ioctl.c - missing __user annotation

On Wed, Jul 30, 2014 at 06:29:57PM +0530, Anil Belur wrote:
> - private_ioctl() internally calls copy_{to,from}_user() and does
>   not use '__user' which gives out several sparse warnings
> - these sparse warnings were fixed by adding __user annotation to
>   the data member of struct tagSCmdRequest:
> 
>  drivers/staging/vt6655/ioctl.c:78:51: warning: incorrect type in argument 2 (different address spaces)
>  drivers/staging/vt6655/ioctl.c:78:51:    expected void const [noderef] asn:1>*from
>  drivers/staging/vt6655/ioctl.c:78:51:    got void *data
> 
> Signed-off-by: Anil Belur <askb23@...il.com>

Looks very nice now.

regards,
dan carpenter

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