net/tap: fix multi process reply buffer

[dpdk.git] / drivers / net / tap / rte_eth_tap.c

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index e9fda8c..7f74b5d 100644 (file)
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -2101,7 +2101,7 @@ tap_mp_attach_queues(const char *port_name, struct rte_eth_dev *dev)
        request.len_param = sizeof(*request_param);
        /* Send request and receive reply */
        ret = rte_mp_request_sync(&request, &replies, &timeout);
-       if (ret < 0) {
+       if (ret < 0 || replies.nb_received != 1) {
                TAP_LOG(ERR, "Failed to request queues from primary: %d",
                        rte_errno);
                return -1;