> I was originally responsible for adding the spin locks to these console
quoted text
> putc functions, but I'm not sure what the policy is regarding that, as
> the 8250 driver doesn't use them for console output for example.

For the console it depends if you need them for internal consistency as I
understand the codebase. For the core stuff it currently protects
port->port.tty against a hangup which would drop the tty under you.

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