diff --git a/drivers/ieee802154/ieee802154_mcr20a.c b/drivers/ieee802154/ieee802154_mcr20a.c
index edd9c174940..4f095797bb2 100644
--- a/drivers/ieee802154/ieee802154_mcr20a.c
+++ b/drivers/ieee802154/ieee802154_mcr20a.c
@@ -532,36 +532,30 @@ static inline bool read_rxfifo_content(struct mcr20a_context *dev,
 		.count = 2
 	};
 
-	if (spi_transceive(dev->spi, &dev->spi_cfg, &tx, &rx) == 0) {
-		net_buf_add(buf, len);
+	if (spi_transceive(dev->spi, &dev->spi_cfg, &tx, &rx) != 0) {
+		return false;
 	}
 
+	net_buf_add(buf, len);
+
 	return true;
 }
 
 static inline void mcr20a_rx(struct mcr20a_context *mcr20a, u8_t len)
 {
 	struct net_pkt *pkt = NULL;
-	struct net_buf *frag;
 	u8_t pkt_len;
 
 	pkt_len = len - MCR20A_FCS_LENGTH;
 
-	pkt = net_pkt_get_reserve_rx(K_NO_WAIT);
+	pkt = net_pkt_alloc_with_buffer(mcr20a->iface, pkt_len,
+					AF_UNSPEC, 0, K_NO_WAIT);
 	if (!pkt) {
 		LOG_ERR("No buf available");
 		goto out;
 	}
 
-	frag = net_pkt_get_frag(pkt, K_NO_WAIT);
-	if (!frag) {
-		LOG_ERR("No frag available");
-		goto out;
-	}
-
-	net_pkt_frag_insert(pkt, frag);
-
-	if (!read_rxfifo_content(mcr20a, frag, pkt_len)) {
+	if (!read_rxfifo_content(mcr20a, pkt->buffer, pkt_len)) {
 		LOG_ERR("No content read");
 		goto out;
 	}