linux-kernel - [PATCH 1/7] staging: comedi: contec_pci

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Date:	Wed, 15 Aug 2012 17:30:26 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	<devel@...verdev.osuosl.org>, <abbotti@....co.uk>,
	<gregkh@...uxfoundation.org>
Subject: [PATCH 1/7] staging: comedi: contec_pci_dio: remove thisboard macro

This macro relies on a local variable of a specific name. Remove the
macro and use the comedi_board() helper to get the thisboard pointer.

Move the 'dev->board_name = thisboard->name;' in contec_attach().
The contec_find_pci_dev() function modifies the dev->board_ptr.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Greg Kroah-hartman <gregkh@...uxfoundation.org>
---
 drivers/staging/comedi/drivers/contec_pci_dio.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index 944cfee..71b7266 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -55,12 +55,11 @@ static const struct contec_board contec_boards[] = {
 
 #define PCI_DEVICE_ID_PIO1616L 0x8172
 
-#define thisboard ((const struct contec_board *)dev->board_ptr)
-
 static int contec_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	const struct contec_board *thisboard = comedi_board(dev);
 
 	dev_dbg(dev->class_dev, "contec_do_insn_bits called\n");
 	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
@@ -79,6 +78,7 @@ static int contec_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	const struct contec_board *thisboard = comedi_board(dev);
 
 	dev_dbg(dev->class_dev, "contec_di_insn_bits called\n");
 	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
@@ -116,14 +116,13 @@ static struct pci_dev *contec_find_pci_dev(struct comedi_device *dev,
 
 static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
+	const struct contec_board *thisboard;
 	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
 	int ret;
 
 	printk("comedi%d: contec: ", dev->minor);
 
-	dev->board_name = thisboard->name;
-
 	ret = comedi_alloc_subdevices(dev, 2);
 	if (ret)
 		return ret;
@@ -132,6 +131,8 @@ static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (!pcidev)
 		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
+	thisboard = comedi_board(dev);
+	dev->board_name = thisboard->name;
 
 	if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
 		printk("error enabling PCI device and request regions!\n");
-- 
1.7.11

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