Alan: There's a problem with the tty->ops->shutdown method. It needs to release the last port reference owned by the current tty. But when was that reference originally acquired? Evidently during the first time serial_open() was called for the current tty. The problem is that serial_open() has no way to know if a particular invocation is the first one for this tty! The ASYNCB_INITIALIZED flag doesn't help, because it might not get set during the first call (i.e., if an error occurs). To do this right, we need a flag in the tty_struct or the tty_port which serial_open() can set when acquiring that first reference and shutdown method can clear. Should I add such a flag? Alan Stern -- 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
