From: Thierry Herbelot <thierry.herbelot@6wind.com>
Date: Mon, 24 May 2021 09:00:38 +0000 (+0200)
Subject: net/bnxt: check access to possible null pointer
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=dc59260fb68960ab4296d974370594f6ea31ab9f;p=dpdk.git

net/bnxt: check access to possible null pointer

Check that pointers are valid before using them.

Fixes: 7bc8e9a227ccb ("net/bnxt: support async link notification")
Cc: stable@dpdk.org

Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 8abbadb3d1..fd8b8fac98 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -21,11 +21,14 @@ void bnxt_int_handler(void *param)
 {
 	struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
 	struct bnxt *bp = eth_dev->data->dev_private;
-	struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
+	struct bnxt_cp_ring_info *cpr;
 	struct cmpl_base *cmp;
 	uint32_t raw_cons;
 	uint32_t cons;
 
+	if (bp == NULL)
+		return;
+	cpr = bp->async_cp_ring;
 	if (cpr == NULL)
 		return;