linux-kernel - Re: [PATCH v2] HID: rmi: check sanity of the incoming report

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Message-ID: <alpine.LNX.2.00.1409122257500.5523@pobox.suse.cz>
Date:	Fri, 12 Sep 2014 22:58:12 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Andrew Duggan <aduggan@...aptics.com>
cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>
Subject: Re: [PATCH v2] HID: rmi: check sanity of the incoming report

On Wed, 10 Sep 2014, Andrew Duggan wrote:

> From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> 
> In the Dell XPS 13 9333, it appears that sometimes the bus get confused
> and corrupts the incoming data. It fills the input report with the
> sentinel value "ff". Synaptics told us that such behavior does not comes
> from the touchpad itself, so we filter out such reports here.
> 
> Unfortunately, we can not simply discard the incoming data because they
> may contain useful information. Most of the time, the misbehavior is
> quite near the end of the report, so we can still use the valid part of
> it.
> 
> Fixes:
> https://bugzilla.redhat.com/show_bug.cgi?id=1123584
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> Signed-off-by: Andrew Duggan <aduggan@...aptics.com>

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs
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