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staging: comedi: usbduxfast: use comedi_to_usb_dev()

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Use the helper function to get a usb_device pointer from a
comedi_device pointer. This removes the need for also getting
the usb_interface pointer in some cases.

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>
This commit is contained in:
H Hartley Sweeten 2013-05-20 14:20:30 -07:00 committed by Greg Kroah-Hartman
parent 61dd149b10
commit 0a92de2420
1 changed files with 7 additions and 13 deletions
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20
drivers/staging/comedi/drivers/usbduxfast.c
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@ -168,8 +168,7 @@ struct usbduxfast_private {
static int usbduxfast_send_cmd(struct comedi_device *dev, int cmd_type)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
struct usbduxfast_private *devpriv = dev->private;
int nsent;
int ret;
@ -239,8 +238,7 @@ static void usbduxfast_ai_interrupt(struct urb *urb)
struct comedi_device *dev = urb->context;
struct comedi_subdevice *s = dev->read_subdev;
struct comedi_async *async = s->async;
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
struct usbduxfast_private *devpriv = dev->private;
int n, err;
@ -341,8 +339,7 @@ static void usbduxfast_ai_interrupt(struct urb *urb)
static int usbduxfast_submit_urb(struct comedi_device *dev)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
struct usbduxfast_private *devpriv = dev->private;
int ret;
@ -871,8 +868,7 @@ static int usbduxfast_ai_insn_read(struct comedi_device *dev,
struct comedi_insn *insn,
unsigned int *data)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
struct usbduxfast_private *devpriv = dev->private;
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int range = CR_RANGE(insn->chanspec);
@ -984,8 +980,7 @@ static int usbduxfast_attach_common(struct comedi_device *dev)
static int usbduxfast_upload_firmware(struct comedi_device *dev,
const struct firmware *fw)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
uint8_t *buf;
unsigned char *tmp;
int ret;
@ -1054,8 +1049,7 @@ static int usbduxfast_upload_firmware(struct comedi_device *dev,
static int usbduxfast_request_firmware(struct comedi_device *dev)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
const struct firmware *fw;
int ret;
@ -1073,7 +1067,7 @@ static int usbduxfast_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct usb_interface *intf = comedi_to_usb_interface(dev);
struct usb_device *usb = interface_to_usbdev(intf);
struct usb_device *usb = comedi_to_usb_dev(dev);
struct usbduxfast_private *devpriv;
int ret;