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.
Fixes: 26c78daade0f ("USB: io_ti: Add heartbeat to keep idle EP/416
ports from disconnecting")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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)