From: Eric Sesterhenn / Snakebyte <snakebyte@gmx.de>
Date: Mon, 9 Apr 2007 14:15:05 +0000 (+0200)
Subject: KVM: Fix overflow bug in overflow detection code
X-Git-Tag: v2.6.22-rc1~1008^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3964994bb5ba85a3d8b54ae618f7be1cecce916d;p=pandora-kernel.git

KVM: Fix overflow bug in overflow detection code

The expression

   sp - 6 < sp

where sp is a u16 is undefined in C since 'sp - 6' is promoted to int,
and signed overflow is undefined in C.  gcc 4.2 actually warns about it.
Replace with a simpler test.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

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