port: fix file descriptor reader

The code should return the actual number of packets read.

Fixes: 5a99f208 ("port: support file descriptor")

Signed-off-by: Andriy Berestovskyy <andriy.berestovskyy@caviumnetworks.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>

diff --git a/lib/librte_port/rte_port_fd.c b/lib/librte_port/rte_port_fd.c
index 8ce2423..b5b3729 100644 (file)
--- a/lib/librte_port/rte_port_fd.c
+++ b/lib/librte_port/rte_port_fd.c
@@ -108,7 +108,7 @@ static int
 rte_port_fd_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
 {
        struct rte_port_fd_reader *p = port;
-       uint32_t i;
+       uint32_t i, j;
 
        if (rte_pktmbuf_alloc_bulk(p->mempool, pkts, n_pkts) != 0)
                return 0;
@@ -126,12 +126,12 @@ rte_port_fd_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
                pkt->pkt_len = n_bytes;
        }
 
-       for ( ; i < n_pkts; i++)
-               rte_pktmbuf_free(pkts[i]);
+       for (j = i; j < n_pkts; j++)
+               rte_pktmbuf_free(pkts[j]);
 
        RTE_PORT_FD_READER_STATS_PKTS_IN_ADD(p, i);
 
-       return n_pkts;
+       return i;
 }
 
 static int