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staging: comedi: jr3_pci: remove devpriv->pci_dev

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The `pci_dev` member of `struct jr3_pci_dev_private` is used to point to
the `struct pci_dev`.  This is redundant as the `struct comedi_device`
already has a pointer to the `struct device` within the `struct pci_dev`
and there is a convenient inline function, `comedi_to_pci_dev(dev)` that
returns a pointer to the `struct pci_dev`.

Remove the redundant `pci_dev` member and use alternate ways to get at
the `struct pci_dev`.

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
2012-11-01 18:34:37 +00:00
committed by Greg Kroah-Hartman
parent 6af0cf7678
commit 19d6ce5446
1 changed files with 5 additions and 9 deletions
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14
drivers/staging/comedi/drivers/jr3_pci.c
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@@ -59,8 +59,6 @@ Devices: [JR3] PCI force sensor board (jr3_pci)
#define PCI_DEVICE_ID_JR3_4_CHANNEL 0x3114
struct jr3_pci_dev_private {
struct pci_dev *pci_dev;
int pci_enabled;
struct jr3_t __iomem *iobase;
int n_channels;
@@ -68,7 +66,6 @@ struct jr3_pci_dev_private {
};
struct poll_delay_t {
int min;
int max;
};
@@ -98,15 +95,15 @@ struct jr3_pci_subdev_private {
};
/* Hotplug firmware loading stuff */
static int comedi_load_firmware(struct comedi_device *dev, char *name,
static int comedi_load_firmware(struct comedi_device *dev, const char *name,
int (*cb)(struct comedi_device *dev,
const u8 *data, size_t size))
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
int result = 0;
const struct firmware *fw;
char *firmware_path;
static const char *prefix = "comedi/";
struct jr3_pci_dev_private *devpriv = dev->private;
firmware_path = kmalloc(strlen(prefix) + strlen(name) + 1, GFP_KERNEL);
if (!firmware_path) {
@@ -115,8 +112,7 @@ static int comedi_load_firmware(struct comedi_device *dev, char *name,
firmware_path[0] = '\0';
strcat(firmware_path, prefix);
strcat(firmware_path, name);
result = request_firmware(&fw, firmware_path,
&devpriv->pci_dev->dev);
result = request_firmware(&fw, firmware_path, &pcidev->dev);
if (result == 0) {
if (!cb)
result = -EINVAL;
@@ -785,7 +781,6 @@ static int __devinit jr3_pci_auto_attach(struct comedi_device *dev,
return -EINVAL;
break;
}
devpriv->pci_dev = pcidev;
dev->board_name = "jr3_pci";
result = comedi_pci_enable(pcidev, "jr3_pci");
@@ -899,6 +894,7 @@ static int __devinit jr3_pci_auto_attach(struct comedi_device *dev,
static void jr3_pci_detach(struct comedi_device *dev)
{
int i;
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
struct jr3_pci_dev_private *devpriv = dev->private;
if (devpriv) {
@@ -911,7 +907,7 @@ static void jr3_pci_detach(struct comedi_device *dev)
if (devpriv->iobase)
iounmap(devpriv->iobase);
if (devpriv->pci_enabled)
comedi_pci_disable(devpriv->pci_dev);
comedi_pci_disable(pcidev);
}
}