app/testpmd: check MAC address query

This patch checks return value for rte_eth_dev_info_get() in show_macs().

Coverity issue: 353629
Fixes: e1d44d0ad623 ("app/testpmd: show MAC addresses added to a port")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 576d5ac..4ce75a8 100644 (file)
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -4930,7 +4930,8 @@ show_macs(portid_t port_id)
 
        dev = &rte_eth_devices[port_id];
 
-       rte_eth_dev_info_get(port_id, &dev_info);
+       if (eth_dev_info_get_print_err(port_id, &dev_info))
+               return;
 
        for (i = 0; i < dev_info.max_mac_addrs; i++) {
                addr = &dev->data->mac_addrs[i];