On Thu, 2013-03-07 at 15:55 +0100, Johan Hovold wrote: > These patches against 3.9-rc1 fix a few issues with tty-port hangup and > close. > > The first and fifth patch are essentially clean ups. > > The second and third patch fix the fact that DTR could get raised > (rather than dropped) at hangup if there are blocked opens. [ Note that > the second patch has been separated into its own patch and that the > third patch is new in v3 of this series. ] > > The fourth patch makes sure DTR is dropped also on hangup and that DTR > is only dropped for initialised ports (where it could have been raised > in the first place). > > The sixth and final patch, makes sure no tty callbacks are made from > tty_port_close_start when the port has not been initialised (successfully > opened). This was previously only done for wait_until_sent but there's > no reason to call flush_buffer or to honour port drain delay either. > The latter could cause a failed open to stall for up to two seconds. > > As a side-effect, these patches also fix an issue in USB-serial where we > could get tty-port callbacks on an uninitialised port after having hung > up and unregistered a device after disconnect. > > Johan > > > v3: > - amend series with fix of DTR sometimes being raised on hang-up > - do not lower DTR on hangup if port tty is gone > - make sure tty in call to shutdown is refcounted > - use cflag-macros throughout Other than the comments for patch 3/6, this series looks good. Thanks again for your work on this. Please cc: me on the USB serial core changes as well, if you don't mind. Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
