From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Tue, 24 Oct 2017 21:19:51 +0000 (-0500)
Subject: net/bnxt: fix a pointer deref before null check
X-Git-Tag: spdx-start~1097
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=60fff858ad2db8c607501b6dd8e3f190a3793913;p=dpdk.git

net/bnxt: fix a pointer deref before null check

Coverity issue: 158634
Fixes: daef48efe5e5 ("net/bnxt: support set MTU")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index d9621e5935..d68d26f174 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -437,11 +437,11 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 
 	cons = rxcmp->opaque;
 	mbuf = bnxt_consume_rx_buf(rxr, cons);
-	rte_prefetch0(mbuf);
-
 	if (mbuf == NULL)
 		return -EBUSY;
 
+	rte_prefetch0(mbuf);
+
 	mbuf->nb_segs = 1;
 	mbuf->next = NULL;
 	mbuf->pkt_len = rxcmp->len;