From: Chengwen Feng <fengchengwen@huawei.com>
Date: Fri, 13 May 2022 02:53:57 +0000 (+0800)
Subject: net/cnxk: fix possible null dereference in telemetry
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=67ead3fa8c3a6775b2b0c9888afd08bdf02c4d9b;p=dpdk.git

net/cnxk: fix possible null dereference in telemetry

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>
---

diff --git a/drivers/net/cnxk/cnxk_ethdev_telemetry.c b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
index b76dbdfef9..180108ab9c 100644
--- a/drivers/net/cnxk/cnxk_ethdev_telemetry.c
+++ b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
@@ -50,6 +50,8 @@ 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++) {