linux-kernel - [PATCH 15/90] staging: comedi: adv_pci1723: move comedi_pci

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Date:	Wed, 18 Jul 2012 18:30:48 -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 15/90] staging: comedi: adv_pci1723: move comedi_pci_enable() into the attach

Use pci_is_enabled() in the "find pci device" function to determine if
the found pci device is not in use and move the comedi_pci_enable() call
into the attach.

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/adv_pci1723.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index f561a2a..e971fa6 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -302,11 +302,7 @@ static struct pci_dev *pci1723_find_pci_dev(struct comedi_device *dev,
 		}
 		if (pcidev->vendor != PCI_VENDOR_ID_ADVANTECH)
 			continue;
-		/*
-		 * Look for device that isn't in use.
-		 * Enable PCI device and request regions.
-		 */
-		if (comedi_pci_enable(pcidev, "adv_pci1723"))
+		if (pci_is_enabled(pcidev))
 			continue;
 		return pcidev;
 	}
@@ -335,6 +331,10 @@ static int pci1723_attach(struct comedi_device *dev,
 	if (!devpriv->pcidev)
 		return -EIO;
 
+	ret = comedi_pci_enable(devpriv->pcidev, "adv_pci1723");
+	if (ret)
+		return ret;
+
 	dev->iobase = pci_resource_start(devpriv->pcidev, 2);
 
 	dev->board_name = this_board->name;
-- 
1.7.11

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