[dpdk-dev] [PATCH] fix for eth_pcap_tx() can cause mbuf corruption

[Konstantin Ananyev]

If pcap_sendpacket() fails, then eth_pcap_tx shouldn't silently free that
mbuf and continue.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
---
 lib/librte_pmd_pcap/rte_eth_pcap.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pmd_pcap/rte_eth_pcap.c 
b/lib/librte_pmd_pcap/rte_eth_pcap.c
index dc4670c..6f026ab 100644
--- a/lib/librte_pmd_pcap/rte_eth_pcap.c
+++ b/lib/librte_pmd_pcap/rte_eth_pcap.c
@@ -239,8 +239,9 @@ eth_pcap_tx(void *queue,
                mbuf = bufs[i];
                ret = pcap_sendpacket(tx_queue->pcap, (u_char*) mbuf->pkt.data,
                                mbuf->pkt.data_len);
-               if(likely(!ret))
-                       num_tx++;
+               if (unlikely(ret != 0))
+                       break;
+               num_tx++;
                rte_pktmbuf_free(mbuf);
        }

-- 
1.7.7.6