Patch "USB: serial: io_ti: fix I/O after disconnect" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

USB: serial: io_ti: fix I/O after disconnect

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
usb-serial-io_ti-fix-i-o-after-disconnect.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Johan Hovold <[email protected]>
Date: Tue, 3 Jan 2017 16:39:45 +0100
Subject: USB: serial: io_ti: fix I/O after disconnect

From: Johan Hovold <[email protected]>

commit 2330d0a853da260d8a9834a70df448032b9ff623 upstream.

Cancel the heartbeat work on driver unbind in order to avoid I/O after disconnect in case the port is held open.

Note that the cancel in release() is still needed to stop the heartbeat after late probe errors.

---
 drivers/usb/serial/io_ti.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -2593,6 +2593,9 @@ static int edge_startup(struct usb_seria
 
 static void edge_disconnect(struct usb_serial *serial)
 {
+	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+	cancel_delayed_work_sync(&edge_serial->heartbeat_work);
 }
 
 static void edge_release(struct usb_serial *serial)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/usb-serial-io_ti-fix-i-o-after-disconnect.patch queue-4.4/usb-serial-ti_usb_3410_5052-fix-null-deref-at-open.patch queue-4.4/usb-serial-kobil_sct-fix-null-deref-in-write.patch queue-4.4/usb-serial-spcp8x5-fix-null-deref-at-open.patch queue-4.4/usb-serial-mos7720-fix-parallel-probe.patch queue-4.4/usb-serial-cyberjack-fix-null-deref-at-open.patch queue-4.4/usb-serial-mos7720-fix-null-deref-at-open.patch queue-4.4/usb-serial-garmin_gps-fix-memory-leak-on-failed-urb-submit.patch queue-4.4/usb-serial-io_ti-fix-null-deref-at-open.patch queue-4.4/usb-serial-pl2303-fix-null-deref-at-open.patch queue-4.4/usb-serial-quatech2-fix-sleep-while-atomic-in-close.patch queue-4.4/usb-serial-iuu_phoenix-fix-null-deref-at-open.patch queue-4.4/usb-serial-oti6858-fix-null-deref-at-open.patch queue-4.4/usb-serial-io_edgeport-fix-null-deref-at-open.patch queue-4.4/usb-serial-mos7720-fix-parport-use-after-free-on-probe-errors.patch queue-4.4/usb-serial-mos7720-fix-use-after-free-on-probe-errors.patch queue-4.4/usb-serial-mos7840-fix-null-deref-at-open.patch queue-4.4/usb-serial-omninet-fix-null-derefs-at-open-and-disconnect.patch queue-4.4/usb-serial-keyspan_pda-verify-endpoints-at-probe.patch queue-4.4/usb-serial-io_ti-fix-another-null-deref-at-open.patch