fresh fruit at 4 months?

I left my daughter with her dad for a few hours, when I came back he was very pleased with himself came over to me with a big grin said "ivy loves bananas!" I was like how do you know and he said he mushed up abit of a banana and fed it to her. We have already started weaning, she has baby porridge that follows on from her formula, a few times a week and she has tried the baby fruit in the jars. So he obviously thought, if she can have them then surely fresh fruit is fine... she is okay nothings happened to her but just wanted to know whether they should be having fresh fruit? I believe it was only a small amount 😕