USB: serial: ftd_sio usb: move status check

Alan Stern commented that the private driver counts must be updated
regard less of the status return on the urb when the write call back
is executed.

This patch alters the behavior to update the private driver counts by
simply moving the status check to after the driver count update.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 74cc3c8..fc527de 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1884,11 +1884,6 @@ static void ftdi_write_bulk_callback(struct urb *urb)
 
        dbg("%s - port %d", __func__, port->number);
 
-       if (status) {
-               dbg("nonzero write bulk status received: %d", status);
-               return;
-       }
-
        priv = usb_get_serial_port_data(port);
        if (!priv) {
                dbg("%s - bad port private data pointer - exiting", __func__);
@@ -1906,6 +1901,11 @@ static void ftdi_write_bulk_callback(struct urb *urb)
        priv->tx_outstanding_bytes -= countback;
        spin_unlock_irqrestore(&priv->tx_lock, flags);
 
+       if (status) {
+               dbg("nonzero write bulk status received: %d", status);
+               return;
+       }
+
        usb_serial_port_softint(port);
 } /* ftdi_write_bulk_callback */