staging: comedi: cb_pcidda: store the pci_dev in the comedi_device

Use the hw_dev pointer in the comedi_device struct to hold the
pci_dev instead of carrying it in the private data.

Save the pci bar in dev->iobase so the detach is consistent with
the other comedi pci drivers.

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/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index 3567f4a84515f53ca7c1c2b785132425078d8c4f..12660a384e592b26e2036d546a1ba84c2d16036a 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -216,9 +216,6 @@ static const struct cb_pcidda_board cb_pcidda_boards[] = {
 struct cb_pcidda_private {
        int data;
 
-       /* would be useful for a PCI device */
-       struct pci_dev *pci_dev;
-
        unsigned long digitalio;
        unsigned long dac;
 
@@ -306,7 +303,7 @@ static int cb_pcidda_attach(struct comedi_device *dev,
        pcidev = cb_pcidda_find_pci_dev(dev, it);
        if (!pcidev)
                return -EIO;
-       devpriv->pci_dev = pcidev;
+       comedi_set_hw_dev(dev, &pcidev->dev);
 
        /*
         * Enable PCI device and request regions.
@@ -320,9 +317,9 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 /*
  * Allocate the I/O ports.
  */
-       devpriv->digitalio =
-           pci_resource_start(devpriv->pci_dev, DIGITALIO_BADRINDEX);
-       devpriv->dac = pci_resource_start(devpriv->pci_dev, DAC_BADRINDEX);
+       devpriv->digitalio = pci_resource_start(pcidev, DIGITALIO_BADRINDEX);
+       devpriv->dac = pci_resource_start(pcidev, DAC_BADRINDEX);
+       dev->iobase = devpriv->dac;
 
 /*
  * Warn about the status of the driver.
@@ -377,12 +374,12 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 
 static void cb_pcidda_detach(struct comedi_device *dev)
 {
-       if (devpriv) {
-               if (devpriv->pci_dev) {
-                       if (devpriv->dac)
-                               comedi_pci_disable(devpriv->pci_dev);
-                       pci_dev_put(devpriv->pci_dev);
-               }
+       struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+       if (pcidev) {
+               if (dev->iobase)
+                       comedi_pci_disable(pcidev);
+               pci_dev_put(pcidev);
        }
        if (dev->subdevices) {
                subdev_8255_cleanup(dev, dev->subdevices + 1);