examples/ethtool: fix unchecked return value

This checks the return value from the function
rte_eth_dev_set_vlan_offload.

Coverity issue: 350358
Fixes: bda68ab9d1e7 ("examples/ethtool: add user-space ethtool sample application")
Cc: stable@dpdk.org
Signed-off-by: Gargi Sau <gargi.sau@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/examples/ethtool/lib/rte_ethtool.c b/examples/ethtool/lib/rte_ethtool.c
index 667d7ea..db8150e 100644 (file)
--- a/examples/ethtool/lib/rte_ethtool.c
+++ b/examples/ethtool/lib/rte_ethtool.c
@@ -402,7 +402,9 @@ rte_ethtool_net_set_rx_mode(uint16_t port_id)
        }
 
        /* Enable Rx vlan filter, VF unspport status is discard */
-       rte_eth_dev_set_vlan_offload(port_id, ETH_VLAN_FILTER_MASK);
+       ret = rte_eth_dev_set_vlan_offload(port_id, ETH_VLAN_FILTER_MASK);
+       if (ret != 0)
+               return ret;
 
        return 0;
 }