staging: comedi: usbduxfast: Use comedi_usb_auto_unconfig() for (*disconnect)

The usb_driver (*disconnect) calls comedi_usb_auto_unconfig() then
frees any allocations by calling tidy_up(). comedi_usb_auto_unconfig()
calls the comedi_driver (*detach) function, usbduxfast_detach().

Move the tidy_up() call into usbduxfast_detach() and use the
comedi_usb_auto_unconfig() directly for the (*disconnect).

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
index cf99e5b..a83b2b5 100644 (file)
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ b/drivers/staging/comedi/drivers/usbduxfast.c
@@ -1366,6 +1366,7 @@ static void usbduxfast_detach(struct comedi_device *dev)
                dev->private = NULL;
                devpriv->attached = 0;
                devpriv->comedidev = NULL;
+               tidy_up(devpriv);
                up(&start_stop_sem);
                up(&devpriv->sem);
        }
@@ -1486,29 +1487,6 @@ static int usbduxfast_usb_probe(struct usb_interface *intf,
        return comedi_usb_auto_config(intf, &usbduxfast_driver, 0);
 }
 
-static void usbduxfast_usb_disconnect(struct usb_interface *intf)
-{
-       struct usbduxfast_private *devpriv = usb_get_intfdata(intf);
-       struct usb_device *usb = interface_to_usbdev(intf);
-
-       if (!devpriv) {
-               dev_err(&intf->dev, "disconnect called with null pointer.\n");
-               return;
-       }
-       if (devpriv->usb != usb) {
-               dev_err(&intf->dev, "BUG! called with wrong ptr!!!\n");
-               return;
-       }
-
-       comedi_usb_auto_unconfig(intf);
-
-       down(&start_stop_sem);
-       down(&devpriv->sem);
-       tidy_up(devpriv);
-       up(&devpriv->sem);
-       up(&start_stop_sem);
-}
-
 static const struct usb_device_id usbduxfast_usb_table[] = {
        /* { USB_DEVICE(0x4b4, 0x8613) }, testing */
        { USB_DEVICE(0x13d8, 0x0010) }, /* real ID */
@@ -1520,7 +1498,7 @@ MODULE_DEVICE_TABLE(usb, usbduxfast_usb_table);
 static struct usb_driver usbduxfast_usb_driver = {
        .name           = "usbduxfast",
        .probe          = usbduxfast_usb_probe,
-       .disconnect     = usbduxfast_usb_disconnect,
+       .disconnect     = comedi_usb_auto_unconfig,
        .id_table       = usbduxfast_usb_table,
 };
 module_comedi_usb_driver(usbduxfast_driver, usbduxfast_usb_driver);