linux-kernel - Re: [PATCH] staging: crystalhd: Do not mix integers and user pointers

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Date:	Fri, 20 Jun 2014 08:14:29 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Lubomir Rintel <lkundrak@...sk>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: crystalhd: Do not mix integers and user pointers

On Fri, Jun 20, 2014 at 02:34:26PM +0300, Dan Carpenter wrote:
> On Fri, Jun 20, 2014 at 01:16:17PM +0200, Lubomir Rintel wrote:
> > Fixes the following sparse warnings:
> > 
> >   crystalhd/crystalhd_lnx.c:227:61: warning: incorrect type in argument 3 (different base types)
> >   crystalhd/crystalhd_lnx.c:227:61:    expected unsigned long [unsigned] ua
> >   crystalhd/crystalhd_lnx.c:227:61:    got void [noderef] <asn:1>*ua
> >   crystalhd/crystalhd_lnx.c:229:65: warning: incorrect type in argument 4 (different base types)
> >   crystalhd/crystalhd_lnx.c:229:65:    expected unsigned long [unsigned] ua
> >   crystalhd/crystalhd_lnx.c:229:65:    got void [noderef] <asn:1>*ua
> > 
> > Done for the Eudyptula challenge.
> > 
> 
> This patch is nice and fixes a bunch of warnings.
> 
> Normally, I would might you to redo it and remove the no longer needed
> casts for ua_off as well...
> 
> 	crystalhd_user_data((void __user *)ua_off, io->add_cdata,
>                             ^^^^^^^^^^^^^^^
> But we are going to delete this entire driver soon.  We may as well
> apply yours as is and then delete it or just delete the driver without
> applying this cleanup.

Yeah, I'm just going to go delete this driver right now, so I will not
apply this patch, sorry :(

greg k-h
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