[Question]: Exit Linter Daemon on Buffer Close

I'm using eslint_d with the configuration below. The issue I'm running into is that once a daemon is started for a particular file/buffer, it is not closed when the buffer is closed. This results in a large number of node processes running continuously on my machine (which I have to pkill on a regular basis).

Is there a good way to trigger the linter to exit when a buffer closes? I'm guessing this is not an issue for other linters as they don't (to my knowledge) run as daemons.

Thanks for any help in advance!