Making fruit wine from unknown Korean fruits

We made some wine from fruits which were growing wild by the street. I'm not sure what those fruits are called, but they tasted mostly sour and a bit sweet. The wine we got was fine, nothing spectacular but it's OK to drink every now and then. Later we found out that the fruit is called Elaeagnus multiflora https://en.wikipedia.org/wiki/Elaeagnus_multiflora