[PATCH 07/90] staging: comedi: adl_pci7432: store the pci_dev in the comedi_device

From: H Hartley Sweeten
Date: Wed Jul 18 2012 - 21:27:12 EST


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

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/adl_pci7432.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci7432.c b/drivers/staging/comedi/drivers/adl_pci7432.c
index 10683c2..ebe022d 100644
--- a/drivers/staging/comedi/drivers/adl_pci7432.c
+++ b/drivers/staging/comedi/drivers/adl_pci7432.c
@@ -44,7 +44,6 @@ Configuration Options:

struct adl_pci7432_private {
int data;
- struct pci_dev *pci_dev;
};

#define devpriv ((struct adl_pci7432_private *)dev->private)
@@ -110,6 +109,7 @@ static struct pci_dev *adl_pci7432_find_pci(struct comedi_device *dev,
static int adl_pci7432_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
+ struct pci_dev *pcidev;
struct comedi_subdevice *s;
int ret;

@@ -124,16 +124,17 @@ static int adl_pci7432_attach(struct comedi_device *dev,
if (ret)
return ret;

- devpriv->pci_dev = adl_pci7432_find_pci(dev, it);
- if (!devpriv->pci_dev)
+ pcidev = adl_pci7432_find_pci(dev, it);
+ if (!pcidev)
return -EIO;
+ comedi_set_hw_dev(dev, &pcidev->dev);

- if (comedi_pci_enable(devpriv->pci_dev, "adl_pci7432") < 0) {
+ if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) {
printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n",
dev->minor);
return -EIO;
}
- dev->iobase = pci_resource_start(devpriv->pci_dev, 2);
+ dev->iobase = pci_resource_start(pcidev, 2);
printk(KERN_INFO "comedi: base addr %4lx\n", dev->iobase);

s = dev->subdevices + 0;
@@ -162,10 +163,12 @@ static int adl_pci7432_attach(struct comedi_device *dev,

static void adl_pci7432_detach(struct comedi_device *dev)
{
- if (devpriv && devpriv->pci_dev) {
+ struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+ if (pcidev) {
if (dev->iobase)
- comedi_pci_disable(devpriv->pci_dev);
- pci_dev_put(devpriv->pci_dev);
+ comedi_pci_disable(pcidev);
+ pci_dev_put(pcidev);
}
}

--
1.7.11

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