Re: [RFC 1/2] n_tty: fix dropped output characters

[Oliver Neukum]

On Mon, 2014-04-14 at 13:53 +0100, One Thousand Gnomes wrote:
> On Fri, 11 Apr 2014 11:41:24 +0200
> Johan Hovold <jhovold@xxxxxxxxx> wrote:
> 
> > Fix characters being dropped by n_tty_write() due to a failure to
> > check the return value of tty_put_char() in do_output_char().
> > 
> > Characters are currently being dropped by write if a tty driver claims
> > to have write room available, but still fails to buffer any data
> 
> Your driver is buggy. If you advertise a buffer you must honour it and
> neither shrink nor revoke it.

Is that a general rule or does it apply only till the next write?

	Regards
		Oliver


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