The 20 year old defender, impressed for the League Two outfit last season with five appearances, and were keen for his return.
Inniss feels like he fits in at Port Vale and says that was a big reason behind his decision to return.
The feel was right here, I feel like I fitted in, even though I've come from South London."
Speaking exclusively to Valiant PlayerHD, the centre back says he has been given a warm welcome back and is now keen to impress.
"I've been on a few loans before as most will know and I've had a few injuries before, obviously I'm still growing and I'm a big lad," he said.
"But the feel was right here, I feel like I fitted in, even though I've come from South London so the lads have welcomed me back and obviously I'm keen to impress further."