diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 67870e9..3b85c0d 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3544,13 +3544,12 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
 		return -ENOMEM;
 
 	strcpy(pkt_dev->odevname, ifname);
-	pkt_dev->flows = vmalloc_node(MAX_CFLOWS * sizeof(struct flow_state),
+	pkt_dev->flows = vzalloc_node(MAX_CFLOWS * sizeof(struct flow_state),
 				      node);
 	if (pkt_dev->flows == NULL) {
 		kfree(pkt_dev);
 		return -ENOMEM;
 	}
-	memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state));
 
 	pkt_dev->removal_mark = 0;
 	pkt_dev->min_pkt_size = ETH_ZLEN;