From: Vincent BENAYOUN <vincent.benayoun@trust-in-soft.com>
Date: Thu, 13 Nov 2014 12:47:26 +0000 (+0100)
Subject: inetdevice: fixed signed integer overflow
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~83^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84bc88688e3f6ef843aa8803dbcd90168bb89faf;p=pandora-kernel.git

inetdevice: fixed signed integer overflow

There could be a signed overflow in the following code.

The expression, (32-logmask) is comprised between 0 and 31 included.
It may be equal to 31.
In such a case the left shift will produce a signed integer overflow.
According to the C99 Standard, this is an undefined behavior.
A simple fix is to replace the signed int 1 with the unsigned int 1U.

Signed-off-by: Vincent BENAYOUN <vincent.benayoun@trust-in-soft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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