I've heard it said to "detach with love". It appears that is what you did. You called him because you miss him and you wanted him to know you were thinking of him while he was hurt.
It only matters how YOU feel about having called him. If you feel okay with it - then don't stress it.
There are times that we have to do what we feel we have to do - even when no one else understands.
I dont think that caring is quite the same as enabling, controlling, etc. I just hope you remember to keep your boundaries. To keep YOU safe.