From: Kulikov Vasiliy <segooon@gmail.com>
Date: Thu, 15 Jul 2010 08:45:57 +0000 (+0000)
Subject: drivers: ixgbevf: fix unsigned underflow
X-Git-Tag: v2.6.36-rc1~571^2~202
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2540ddb5124f883bba3d4af5d8920d44dd66e794;p=pandora-kernel.git

drivers: ixgbevf: fix unsigned underflow

'count' is unsigned. It is initialized to zero, then it can be increased
multiple times, and finally it is used in such a way:

   >>>> count--;
   |
   |    /* clear timestamp and dma mappings for remaining portion of packet */
   |    while (count >= 0) {
   |            count--;
   |            ...
   ^
If count is zero here (so, it was never increased), we would have a very
long loop :)

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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