Best practice for this node.js exception handling approach?

I have code with this pattern - I need to call next() both when fn() is successful, or when there is an exception in fn()'s exeuction.

try {
    fn.call(obj, a, b, c, function(error, next) {
           ...
           next();
    });
} catch (ex) {
    // log. 
    next();  // This is under question.
}

The exception can happen not only in fn, but anywhere in next() also. I shouldn't be calling next() from within the catch, since I don't if the exception came from somewhere during execution of next itself.

So what approach do you folks recommend for this pattern?