USB: last abuses of intfdata in close for usb-serial drivers

these drivers abused intfdata in close() as flags for binding.
That races with reprobing of those devices. This patch fixes that by using
the flag and the locks introduced with the patch against mos7720.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index ac3d8765f482..ae3ec1a64008 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -667,7 +667,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp)
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (pl2303_buf_data_avail(priv->buf) == 0 ||
                     timeout == 0 || signal_pending(current) ||
-                    !usb_get_intfdata(port->serial->interface)) /* disconnect */
+                    port->serial->disconnected)
                         break;
                 spin_unlock_irqrestore(&priv->lock, flags);
                 timeout = schedule_timeout(timeout);