> In theory, at least, this should be serialized by the TTY core. In > practice it probably isn't, since the core relies so heavily on the > BKL. Still, I would prefer to fix the core rather than change > usb-serial. tty_mutex addresses some of that but it does still use the BKL which is ugly > Locking in the TTY layer is a mess. Open races with just about > everything else, and in addition hangup races with close. Not to > mention races involving the I/O and line discipline paths or the serial > attributes (baud rate and so on). Until this is fixed properly, baud rate etc is all locked cleanly by the termios lock. Its one bright spot that was finished ;) -- 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