[Haskell-cafe] [IO Int] -> IO [Int]

[Phlex]

Hello all,

I'm trying to learn haskell, so here's is my first newbie question.
I hope this list is appropriate for such help requests.

I'm trying to write a function with the signature [IO Int] -> IO [Int]

Here is my first attempt :

conv :: [IO Int] -> IO [Int]
conv l = do val <- (head l)
            return (val : (conv (tail l)))

This does not work as I'm consing an Int to an (IO [Int]).
So I tried this :

conv2 :: [IO Int] -> IO [Int]
conv2 l = do val <- (head l)
             rest <- (conv2 (tail l))
             return (val : rest)

That works, but it won't work for infinite lists.
How could I achieve the desired result ?

Thanks in advance,
Sacha