linux-kernel - Re: ext4_lazyinit_thread: 'ret' may be used uninitialized in this function

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Message-ID: <20101102193150.GA14504@elliptictech.com>
Date:	Tue, 2 Nov 2010 15:31:50 -0400
From:	Nick Bowler <nbowler@...iptictech.com>
To:	Lukas Czerner <lczerner@...hat.com>
Cc:	kevin granade <kevin.granade@...il.com>, Ted Ts'o <tytso@....edu>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: ext4_lazyinit_thread: 'ret' may be used uninitialized in this
 function

On 2010-11-02 15:19 -0400, Lukas Czerner wrote:
> Hmm this relies on the fact that if the first part of the condition
> would not be true, the second part (after and) would never be invoked,
> however I am not really sure that we can rely on that on every
> architecture, or can we ?

This behaviour of the && operator is guaranteed by the C standard.

-- 
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)
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