net/virtio: fix memory leak in in-order Rx

When there is no enough segments for a packet in in-order
mergeable Rx path, we should free the whole mbuf chain instead
of just recycling the last segment.

Fixes: e5f456a98d3c ("net/virtio: support in-order Rx and Tx")
Cc: stable@dpdk.org
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index dcce39e..e4d5b6f 100644 (file)
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -1554,7 +1554,7 @@ virtio_recv_pkts_inorder(void *rx_queue,
                } else {
                        PMD_RX_LOG(ERR,
                                        "No enough segments for packet.");
-                       virtio_discard_rxbuf_inorder(vq, prev);
+                       rte_pktmbuf_free(rx_pkts[nb_rx]);
                        rxvq->stats.errors++;
                        break;
                }