Avoid decremented overflow.
authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Wed, 9 Jul 2008 15:31:50 +0000 (15:31 +0000)
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Wed, 9 Jul 2008 15:31:50 +0000 (15:31 +0000)
commit266910c4346a24dff83ec01c7e1fa87eb938243f
treeea91c9df2396b07488c8b600fc9eb64f21bc0efc
parentb6d96beda3a6cbf20a2d04a609eff78adebd8859
Avoid decremented overflow.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4862 c046a42c-6fe2-441c-8c8c-71466251a162
exec.c