commit 1a214246cbb431f7430f7d0c0fb66218a6f442d2
author Dan Carpenter <dan.carpenter@oracle.com> Wed Oct 19 09:15:10 2011 +0300
committer Avi Kivity <avi@redhat.com> Tue Dec 27 11:17:07 2011 +0200
tree 5a45be4f7fe958dbd09774ad9425bdcf40ff8e91
parent 3f2e5260f5a17d37be3e3c83aca2f335b9bf3893

KVM: make checks stricter in coalesced_mmio_in_range()

My testing version of Smatch complains that addr and len come from
the user and they can wrap.  The path is:
  -> kvm_vm_ioctl()
     -> kvm_vm_ioctl_unregister_coalesced_mmio()
        -> coalesced_mmio_in_range()

I don't know what the implications are of wrapping here, but we may
as well fix it, if only to silence the warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>