linux-kernel - [PATCH 68/90] staging: comedi: dt3000: store the pci_dev in the comedi

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Date:	Wed, 18 Jul 2012 18:58:43 -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 68/90] staging: comedi: dt3000: store the pci_dev in the comedi_device

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@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/staging/comedi/drivers/dt3000.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 3937e87..a6fe6c9 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -248,8 +248,6 @@ static const struct dt3k_boardtype dt3k_boardtypes[] = {
 #define DT3000_CHANNEL_MODE_DI		1
 
 struct dt3k_private {
-
-	struct pci_dev *pci_dev;
 	void __iomem *io_addr;
 	unsigned int lock;
 	unsigned int ao_readback[2];
@@ -817,7 +815,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	pcidev = dt3000_find_pci_dev(dev, it);
 	if (!pcidev)
 		return -EIO;
-	devpriv->pci_dev = pcidev;
+	comedi_set_hw_dev(dev, &pcidev->dev);
 
 	ret = comedi_pci_enable(pcidev, "dt3000");
 	if (ret < 0)
@@ -900,17 +898,19 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void dt3000_detach(struct comedi_device *dev)
 {
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
-		if (devpriv->pci_dev) {
-			if (dev->iobase)
-				comedi_pci_disable(devpriv->pci_dev);
-			pci_dev_put(devpriv->pci_dev);
-		}
 		if (devpriv->io_addr)
 			iounmap(devpriv->io_addr);
 	}
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+		pci_dev_put(pcidev);
+	}
 }
 
 static struct comedi_driver dt3000_driver = {
-- 
1.7.11

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