linux-kernel - Re: [PATCH] spi: Initialize variable to prevent uninitialized warning

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] [day] [month] [year] [list]

Date:	Thu, 7 Aug 2014 10:55:17 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Nick Krause <xerofoiify@...il.com>,
	"open list:SPI SUBSYSTEM" <linux-spi@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] spi: Initialize variable to prevent uninitialized warning

On Wed, Aug 06, 2014 at 10:22:19PM -0700, Guenter Roeck wrote:

> So if we ever hit that uninitialized case, where bits_per_word is
> neither 8 nor 16, we'll have ops set to NULL and end up wondering
> why the kernel crashes a bit further down in the code. Not really
> sure if that is an improvement.

It's not.  The goal isn't to fix the warning, it's to fix the problem
the compiler is telling you about - initialising to the wrong value is
just as bad as not being initialised at all.

Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)