static int
 bond_mode_8023ad_register_lacp_mac(uint16_t slave_id)
 {
+       int ret;
+
        rte_eth_allmulticast_enable(slave_id);
        if (rte_eth_allmulticast_get(slave_id)) {
                RTE_BOND_LOG(DEBUG, "forced allmulti for port %u",
                return 0;
        }
 
-       rte_eth_promiscuous_enable(slave_id);
+       ret = rte_eth_promiscuous_enable(slave_id);
+       if (ret != 0) {
+               RTE_BOND_LOG(ERR,
+                       "failed to enable promiscuous mode for port %u: %s",
+                       slave_id, rte_strerror(-ret));
+       }
        if (rte_eth_promiscuous_get(slave_id)) {
                RTE_BOND_LOG(DEBUG, "forced promiscuous for port %u",
                             slave_id);
 static void
 bond_mode_8023ad_unregister_lacp_mac(uint16_t slave_id)
 {
+       int ret;
+
        switch (bond_mode_8023ad_ports[slave_id].forced_rx_flags) {
        case BOND_8023AD_FORCED_ALLMULTI:
                RTE_BOND_LOG(DEBUG, "unset allmulti for port %u", slave_id);
 
        case BOND_8023AD_FORCED_PROMISC:
                RTE_BOND_LOG(DEBUG, "unset promisc for port %u", slave_id);
-               rte_eth_promiscuous_disable(slave_id);
+               ret = rte_eth_promiscuous_disable(slave_id);
+               if (ret != 0)
+                       RTE_BOND_LOG(ERR,
+                               "failed to disable promiscuous mode for port %u: %s",
+                               slave_id, rte_strerror(-ret));
                break;
 
        default:
 
 {
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        int i;
+       int ret = 0;
+       uint16_t port_id;
 
        switch (internals->mode) {
        /* Promiscuous mode is propagated to all slaves */
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD:
                for (i = 0; i < internals->slave_count; i++) {
-                       uint16_t port_id = internals->slaves[i].port_id;
+                       port_id = internals->slaves[i].port_id;
 
-                       rte_eth_promiscuous_enable(port_id);
+                       ret = rte_eth_promiscuous_enable(port_id);
+                       if (ret != 0)
+                               RTE_BOND_LOG(ERR,
+                                       "Failed to enable promiscuous mode for port %u: %s",
+                                       port_id, rte_strerror(-ret));
                }
                break;
        /* Promiscuous mode is propagated only to primary slave */
                /* Do not touch promisc when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
-               rte_eth_promiscuous_enable(internals->current_primary_port);
+               port_id = internals->current_primary_port;
+               ret = rte_eth_promiscuous_enable(port_id);
+               if (ret != 0)
+                       RTE_BOND_LOG(ERR,
+                               "Failed to enable promiscuous mode for port %u: %s",
+                               port_id, rte_strerror(-ret));
        }
 }
 
 {
        struct bond_dev_private *internals = dev->data->dev_private;
        int i;
+       int ret;
+       uint16_t port_id;
 
        switch (internals->mode) {
        /* Promiscuous mode is propagated to all slaves */
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD:
                for (i = 0; i < internals->slave_count; i++) {
-                       uint16_t port_id = internals->slaves[i].port_id;
+                       port_id = internals->slaves[i].port_id;
 
                        if (internals->mode == BONDING_MODE_8023AD &&
                            bond_mode_8023ad_ports[port_id].forced_rx_flags ==
                                        BOND_8023AD_FORCED_PROMISC)
                                continue;
-                       rte_eth_promiscuous_disable(port_id);
+                       ret = rte_eth_promiscuous_disable(port_id);
+                       if (ret != 0)
+                               RTE_BOND_LOG(ERR,
+                                       "Failed to disable promiscuous mode for port %u: %s",
+                                       port_id, rte_strerror(-ret));
                }
                break;
        /* Promiscuous mode is propagated only to primary slave */
                /* Do not touch promisc when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
-               rte_eth_promiscuous_disable(internals->current_primary_port);
+               port_id = internals->current_primary_port;
+               ret = rte_eth_promiscuous_disable(port_id);
+               if (ret != 0)
+                       RTE_BOND_LOG(ERR,
+                               "Failed to disable promiscuous mode for port %u: %s",
+                               port_id, rte_strerror(-ret));
        }
 }