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From: Philipp Zabel <p.zabel@pengutronix.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Lucas Stach <l.stach@pengutronix.de>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [RESEND] gpu: ipu-v3: prg: avoid possible array underflow
Date: Tue, 16 Jan 2018 16:02:14 +0100	[thread overview]
Message-ID: <1516114934.9022.10.camel@pengutronix.de> (raw)
In-Reply-To: <20180116143212.1411334-1-arnd@arndb.de>

Hi Arnd,

On Tue, 2018-01-16 at 15:31 +0100, Arnd Bergmann wrote:
> gcc-8 reports that we access an array with a negative index
> in an error case:
> 
> drivers/gpu/ipu-v3/ipu-prg.c: In function 'ipu_prg_channel_disable':
> drivers/gpu/ipu-v3/ipu-prg.c:252:43: error: array subscript -22 is below array bounds of 'struct ipu_prg_channel[3]' [-Werror=array-bounds]
> 
> This moves the range check in front of the dereference.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ----
> Originally sent on Dec 4, 2017. No reply, so resending unchanged.

Thank you, applied to imx-drm/fixes.

regards
Philipp

      reply	other threads:[~2018-01-16 15:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-16 14:31 Arnd Bergmann
2018-01-16 15:02 ` Philipp Zabel [this message]

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