* (addr,len) is fully included in
* (zone->addr, zone->size)
*/
-
- return (dev->zone.addr <= addr &&
- addr + len <= dev->zone.addr + dev->zone.size);
+ if (len < 0)
+ return 0;
+ if (addr + len < addr)
+ return 0;
+ if (addr < dev->zone.addr)
+ return 0;
+ if (addr + len > dev->zone.addr + dev->zone.size)
+ return 0;
+ return 1;
}
static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev)