vcl: fix free segments assert

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I837820fd1759cab55f42c54950e991a215234737
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 2082394..86a0c64 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -2196,7 +2196,7 @@
   is_ct = vcl_session_is_ct (s);
   svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
 
-  ASSERT (s->rx_bytes_pending < n_bytes);
+  ASSERT (s->rx_bytes_pending >= n_bytes);
   s->rx_bytes_pending -= n_bytes;
 }