linux-kernel - [PATCH 54/90] staging: comedi: cb_pcimdas: remove BADR0 from the private data

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Date:	Wed, 18 Jul 2012 18:49:03 -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 54/90] staging: comedi: cb_pcimdas: remove BADR0 from the private data

The pci resource bar 0 address is only used as a "flag" to
let the datach function know that the pci device has been
enabled. Use dev->iobase in the detach instead and remove
BADR0 from 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/cb_pcimdas.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index 4312e9b..ce08533 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -56,7 +56,6 @@ See http://www.mccdaq.com/PDFs/Manuals/pcim-das1602-16.pdf for more details.
 /* Registers for the PCIM-DAS1602/16 */
 
 /* sizes of io regions (bytes) */
-#define BADR0_SIZE 2		/* ?? */
 #define BADR3_SIZE 16
 
 /* DAC Offsets */
@@ -135,7 +134,6 @@ struct cb_pcimdas_private {
 	struct pci_dev *pci_dev;
 
 	/* base addresses */
-	unsigned long BADR0;
 	unsigned long BADR3;
 
 	/* Used for AO readback */
@@ -230,7 +228,6 @@ static int cb_pcimdas_attach(struct comedi_device *dev,
 		return -EIO;
 	}
 
-	devpriv->BADR0 = pci_resource_start(devpriv->pci_dev, 0);
 	dev->iobase = pci_resource_start(devpriv->pci_dev, 2);
 	devpriv->BADR3 = pci_resource_start(devpriv->pci_dev, 3);
 	iobase_8255 = pci_resource_start(devpriv->pci_dev, 4);
@@ -290,7 +287,7 @@ static void cb_pcimdas_detach(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
-			if (devpriv->BADR0)
+			if (dev->iobase)
 				comedi_pci_disable(devpriv->pci_dev);
 			pci_dev_put(devpriv->pci_dev);
 		}
-- 
1.7.11

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