From: Hans-Frieder Vogt <hfvogt@gmx.net>
Date: Wed, 3 Oct 2012 08:25:40 +0000 (-0300)
Subject: [media] af9033: prevent unintended underflow
X-Git-Tag: v3.7-rc1~38^2^2~108
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=182b967e1119d22889e334c8f1c1b75df41f9165;p=pandora-kernel.git

[media] af9033: prevent unintended underflow

As spotted by Dan Carpenter <dan.carpenter@oracle.com> (thanks!), we have
improperly used an unsigned variable in a calculation that may result in a
negative number. This may cause an unintended underflow if the interface
frequency of the tuner is > approx. 40MHz.
This patch should resolve the issue, following an approach similar to what is
used in af9013.c.

[crope@iki.fi: add Reported-by]
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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