On Thu, Jan 17, 2013 at 01:07:02AM +0100, Wolfgang Frisch wrote: > The tty is NULL when the port is hanging up. > chase_port() needs to check for this. > > This patch is intended for stable series. > The behavior was observed and tested in Linux 3.2 and 3.7.1. > > Johan Hovold submitted a more elaborate patch for the mainline kernel. [...] > Signed-off-by: Wolfgang Frisch <wfpub@xxxxxxxxxxxx> Acked-by: Johan Hovold <jhovold@xxxxxxxxx> Greg, this one should go into v3.8-rc and the stable trees. I'll resend my series that remove the no-longer-needed chase_port() once this patch has made it to usb-next. Thanks, Johan > --- > drivers/usb/serial/io_ti.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c > index 60023c2..ed83e7a 100644 > --- a/drivers/usb/serial/io_ti.c > +++ b/drivers/usb/serial/io_ti.c > @@ -534,6 +534,9 @@ static void chase_port(struct edgeport_port *port, unsigned long timeout, > wait_queue_t wait; > unsigned long flags; > > + if (!tty) > + return; > + > if (!timeout) > timeout = (HZ * EDGE_CLOSING_WAIT)/100; > -- 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
