--- drivers/net/eql.c
+++ drivers/net/eql.c
@@ -554,6 +554,8 @@ static int eql_g_master_cfg(struct net_d
equalizer_t *eql;
master_config_t mc;
+ memset(&mc, 0, sizeof(master_config_t));
+
if (eql_is_master(dev)) {
eql = netdev_priv(dev);
mc.max_slaves = eql->max_slaves;