evie/android_kernel_oneplus_msm8998
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staging: comedi: das08: Use struct comedi_device hw_dev for PCI

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Remove the pointer to the PCI device from the private data `struct
das08_private_struct`.  Use `comedi_set_hw_dev()` to save a pointer to
the PCI device (actually, its embedded `struct device`) and
`comedi_to_pci_dev()` to retrieve it.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2012-09-05 11:02:40 +01:00 • committed by Greg Kroah-Hartman
parent c396147048
commit 40a3ee02f8
2 changed files with 4 additions and 7 deletions
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10
drivers/staging/comedi/drivers/das08.c
View file

@ -778,7 +778,6 @@ das08_find_pci_board(struct pci_dev *pdev)
static int __devinit __maybe_unused
das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev)
{
struct das08_private_struct *devpriv;
unsigned long iobase;
int ret;
@ -793,8 +792,7 @@ das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev)
dev_err(dev->class_dev, "BUG! cannot determine board type!\n");
return -EINVAL;
}
devpriv = dev->private;
devpriv->pdev = pdev;
comedi_set_hw_dev(dev, &pdev->dev);
/* enable PCI device and reserve I/O spaces */
if (comedi_pci_enable(pdev, dev->driver->driver_name)) {
dev_err(dev->class_dev,
@ -847,16 +845,16 @@ EXPORT_SYMBOL_GPL(das08_common_detach);
static void __maybe_unused das08_detach(struct comedi_device *dev)
{
const struct das08_board_struct *thisboard = comedi_board(dev);
struct das08_private_struct *devpriv = dev->private;
das08_common_detach(dev);
if (is_isa_board(thisboard)) {
if (dev->iobase)
release_region(dev->iobase, thisboard->iosize);
} else if (is_pci_board(thisboard)) {
if (devpriv && devpriv->pdev) {
struct pci_dev *pdev = comedi_to_pci_dev(dev);
if (pdev) {
if (dev->iobase)
comedi_pci_disable(devpriv->pdev);
comedi_pci_disable(pdev);
}
}
}

1
drivers/staging/comedi/drivers/das08.h
View file

@ -51,7 +51,6 @@ struct das08_private_struct {
unsigned int do_mux_bits; /* bits for do/mux register on boards without separate do register */
unsigned int do_bits; /* bits for do register on boards with register dedicated to digital out only */
const unsigned int *pg_gainlist;
struct pci_dev *pdev; /* struct for pci-das08 */
unsigned int ao_readback[2]; /* assume 2 AO channels */
};