[RFC PATCH 4/5] hvc_console: Add tty window resizing

[Alan Cox]

> +	hp = container_of(work, struct hvc_struct, tty_resize);
> +	if (!hp || !hp->tty)
> +		return;

What locks hp->tty here, it can go NULL after the test on a hangup it
seems ?

> + * hvc_resize() - Update terminal window size information.
> + * @hp:		HVC console pointer
> + * @ws:		Terminal window size structure

See tty_do_resize() for all of this stuff in the latest git. If you can't
use tty_do_resize from your work queue then please let me know why as I'd
like everyone to be using one abstraction.

We also now have a "resize" operation for devices that want to react to a
resize from TIOCSWINSZ