virtio: fix overflow in case of buffering + drop

Type: fix
Fixes: 2e6f624f1f82ae0351dd05ad5d930d6876105519

Change-Id: Ib41c82ea1e8430afc920250fb0d054a2fb2d08c9
Signed-off-by: Benoît Ganne <bganne@cisco.com>

diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c
index 7e57952..6b57dd6 100644 (file)
--- a/src/vnet/devices/virtio/device.c
+++ b/src/vnet/devices/virtio/device.c
@@ -1042,7 +1042,6 @@ retry:
                                                             [frame->n_vectors
                                                              - n_left],
                                                             n_left);
-      buffers += n_buffered;
       n_left -= n_buffered;
     }
   if (n_left)