ARM: dts: imx6qdl: add support for Ka-Ro TX6 modules

[karo-tx-linux.git] / virt / kvm / coalesced_mmio.c

diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index a6ec206f36ba2f16f43c90680535ff6bcc45d56f..88b2fe3ddf42a3c60bba0a3fbc1d7bd3172a8730 100644 (file)
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -28,9 +28,15 @@ static int coalesced_mmio_in_range(struct kvm_coalesced_mmio_dev *dev,
         * (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)