I posted the following last year:
Some time ago a colleague had smoke and commenced descent for immediate landing.
Smoke cleared but he continued for landing.
Afterwards, he seemed to me to be subjected to some adverse criticism for not re-assessing and continuing flight.
I have no doubt whatsoever that he made the correct decision.
It's easy to say, and it's an oldie, but in that situation if there's any doubt then there's no doubt.