On Mon, 14 Apr 2014 15:05:49 +0200 Oliver Neukum <oneukum@xxxxxxx> wrote: > 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? Its a general rule. If you've advertised 5 bytes then you can only advertise 0 after 5 bytes have been sent your way (or a hangup etc occurred). Alan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
