[dpdk-dev] [PATCH v2 2/5] net/ice: fix dereference after null check coverity

[Xiao Zhang]

This patch fixes (dereference after null check) coverity issue.
The address of first segmented packets was not set correctly during
reassembling packets which led to this issue.

Coverity issue: 343452
Coverity issue: 343407
Fixes: c68a52b8 ("net/ice: support vector SSE in Rx")
Cc: sta...@dpdk.org

Signed-off-by: Xiao Zhang <xiao.zh...@intel.com>
---
 drivers/net/ice/ice_rxtx_vec_avx2.c | 1 +
 drivers/net/ice/ice_rxtx_vec_sse.c  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/ice/ice_rxtx_vec_avx2.c 
b/drivers/net/ice/ice_rxtx_vec_avx2.c
index fac869a..5ce29c2 100644
--- a/drivers/net/ice/ice_rxtx_vec_avx2.c
+++ b/drivers/net/ice/ice_rxtx_vec_avx2.c
@@ -656,6 +656,7 @@ ice_recv_scattered_burst_vec_avx2(void *rx_queue, struct 
rte_mbuf **rx_pkts,
                        i++;
                if (i == nb_bufs)
                        return nb_bufs;
+               rxq->pkt_first_seg = rx_pkts[i];
        }
        return i + ice_rx_reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
                                             &split_flags[i]);
diff --git a/drivers/net/ice/ice_rxtx_vec_sse.c 
b/drivers/net/ice/ice_rxtx_vec_sse.c
index 049f60d..967a7b1 100644
--- a/drivers/net/ice/ice_rxtx_vec_sse.c
+++ b/drivers/net/ice/ice_rxtx_vec_sse.c
@@ -509,6 +509,7 @@ ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf 
**rx_pkts,
                        i++;
                if (i == nb_bufs)
                        return nb_bufs;
+               rxq->pkt_first_seg = rx_pkts[i];
        }
        return i + ice_rx_reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
                                             &split_flags[i]);
-- 
2.7.4