devc = sdi->priv;
/* Prefill actual states */
+ g_mutex_lock(&devc->rw_mutex);
ret = rdtech_dps_read_holding_registers(modbus, REG_PROTECT, 3, registers);
+ g_mutex_unlock(&devc->rw_mutex);
if (ret != SR_OK)
return ret;
devc->actual_ovp_state = RB16(registers + 0) == STATE_OVP;