From d3078f7a0fe21d94fa8d6027f2541311a990585a Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen@huawei.com>
Date: Fri, 13 May 2022 10:53:57 +0800
Subject: [PATCH 095/122] net/cnxk: fix possible null dereference in telemetry
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The return value of rte_tel_data_alloc() may be null pointer.
Add missing check vs null.

Fixes: 5ea354a1f2cc ("net/cnxk: support telemetry")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
---
 drivers/net/cnxk/cnxk_ethdev_telemetry.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/cnxk/cnxk_ethdev_telemetry.c b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
index 83bc65848c..4fd9048643 100644
--- a/drivers/net/cnxk/cnxk_ethdev_telemetry.c
+++ b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
@@ -49,6 +49,8 @@ ethdev_tel_handle_info(const char *cmd __rte_unused,
 	rte_tel_data_add_dict_int(d, "n_ports", n_ports);
 
 	i_data = rte_tel_data_alloc();
+	if (i_data == NULL)
+		return -ENOMEM;
 	rte_tel_data_start_array(i_data, RTE_TEL_U64_VAL);
 
 	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
-- 
2.22.0