From: John W. Linville <linville@tuxdriver.com>
Date: Thu, 27 Aug 2015 17:50:50 +0000 (-0400)
Subject: af_packet: check Tx error
X-Git-Tag: spdx-start~8390
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b89664c07b02ea7fb6f90210f1a6ae5b6e990787;p=dpdk.git

af_packet: check Tx error

Coverity CID # 13200

If sendto fails, the packets will not get transmitted.  Return 0 as
the number of packets transmitted.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index cac26e5338..bfde661157 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -220,7 +220,8 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	}
 
 	/* kick-off transmits */
-	sendto(pkt_q->sockfd, NULL, 0, MSG_DONTWAIT, NULL, 0);
+	if (sendto(pkt_q->sockfd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1)
+		return 0; /* error sending -- no packets transmitted */
 
 	pkt_q->framenum = framenum;
 	pkt_q->tx_pkts += num_tx;