net/axgbe: clear buffer on scattered Rx chaining failure

[ upstream commit 30ff4d0 ]

Clearing mbuf, first_seg when chaining mbufs fail.
Increment the error count for the same.

Fixes: 965b312 ("net/axgbe: support scattered Rx")

Signed-off-by: Bhagyada Modali <bhagyada.modali@amd.com>
Acked-by: Chandubabu Namburu <chandu@amd.com>

drivers/net/axgbe/axgbe_rxtx.c

@@ -419,8 +419,10 @@ uint16_t eth_axgbe_recv_scattered_pkts(void *rx_queue,
 
 		if (first_seg != NULL) {
 			if (rte_pktmbuf_chain(first_seg, mbuf) != 0) {
-				rte_mempool_put(rxq->mb_pool,
-						first_seg);
+				rte_pktmbuf_free(first_seg);
+				first_seg = NULL;
+				rte_pktmbuf_free(mbuf);
+				rxq->errors++;
 				eop = 0;
 				break;
 			}