[PATCH 3/3] net/cnxk: fix telemetry possible null pointer access

[Chengwen Feng]

The return value of rte_tel_data_alloc() may be null pointer, in this
patch, the null check function is added.

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

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 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++) {
-- 
2.33.0