linux-kernel - Re: [PATCH v2 3/3] dmi: Make dmi_walk and dmi_walk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 19 Jan 2016 10:07:36 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Jean Delvare <jdelvare@...e.de>
Cc:	Andy Lutomirski <luto@...nel.org>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] dmi: Make dmi_walk and dmi_walk_early return real
 error codes

On Tuesday 19 January 2016 10:03:03 Jean Delvare wrote:
> Hi Pali,
> 
> On Tue, 19 Jan 2016 09:36:33 +0100, Pali Rohár wrote:
> > On Tuesday 19 January 2016 08:54:26 Jean Delvare wrote:
> > > > @@ -978,11 +978,11 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
> > > >  	u8 *buf;
> > > >  
> > > >  	if (!dmi_available)
> > > > -		return -1;
> > > > +		return -ENOENT;
> > > 
> > > -ENOSYS would seem more appropriate?
> > 
> > IIRC -ENOSYS is for non implemented syscalls.
> 
> I can see a lot of -ENOSYS in include/linux/*.h returned by stubs when
> a specific subsystem is not included. Not related to syscalls at all.
> This is what lead to my suggestion.

https://lkml.org/lkml/2014/8/22/492

-- 
Pali Rohár
pali.rohar@...il.com