linux-kernel - Re: [PATCH V2] regulator: core: fix constraints debug output

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Message-ID: <20150609180028.GT14071@sirena.org.uk>
Date:	Tue, 9 Jun 2015 19:00:28 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Stefan Wahren <stefan.wahren@...e.com>
Cc:	Liam Girdwood <lgirdwood@...il.com>, Joe Perches <joe@...ches.com>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH V2] regulator: core: fix constraints debug output

On Wed, Jun 03, 2015 at 09:56:29PM +0000, Stefan Wahren wrote:
> The line buffer for constraints debug isn't big enough to hold the output
> in all cases. So fix the possible buffer overflow by the usage of the
> scnprintf().

If we know how much output we might produce then why not extend the
buffer so we don't need to cut it off?  The defensive programming is
good but that seems a better fix.

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