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Date: Wed, 18 Jul 2012 19:03:25 -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 82/90] staging: comedi: me_daq: factor out the "find pci device" code
Factor the "find pci device" code out of the attach function.
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/me_daq.c | 49 ++++++++++++++++++++-------------
1 file changed, 30 insertions(+), 19 deletions(-)
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index 1803d66..dc0fbbd 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -610,23 +610,11 @@ static int me_reset(struct comedi_device *dev)
return 0;
}
-static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static struct pci_dev *me_find_pci_dev(struct comedi_device *dev,
+ struct comedi_devconfig *it)
{
struct pci_dev *pci_device = NULL;
- struct comedi_subdevice *subdevice;
- struct me_board *board;
- resource_size_t plx_regbase_tmp;
- unsigned long plx_regbase_size_tmp;
- resource_size_t me_regbase_tmp;
- unsigned long me_regbase_size_tmp;
- resource_size_t swap_regbase_tmp;
- unsigned long swap_regbase_size_tmp;
- resource_size_t regbase_tmp;
- int result, error, i;
-
- /* Allocate private memory */
- if (alloc_private(dev, sizeof(struct me_private_data)) < 0)
- return -ENOMEM;
+ int i;
/* Probe the device to determine what device in the series it is. */
for_each_pci_dev(pci_device) {
@@ -652,9 +640,6 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
}
dev->board_ptr = me_boards + i;
- board =
- (struct me_board *)dev->board_ptr;
- dev_private->pci_device = pci_device;
goto found;
}
}
@@ -664,12 +649,38 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
printk(KERN_ERR
"comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
dev->minor, it->options[0], it->options[1]);
- return -EIO;
+ return NULL;
found:
printk(KERN_INFO "comedi%d: found %s at PCI bus %d, slot %d\n",
dev->minor, me_boards[i].name,
pci_device->bus->number, PCI_SLOT(pci_device->devfn));
+ return pci_device;
+}
+
+static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+{
+ struct pci_dev *pci_device;
+ struct comedi_subdevice *subdevice;
+ struct me_board *board;
+ resource_size_t plx_regbase_tmp;
+ unsigned long plx_regbase_size_tmp;
+ resource_size_t me_regbase_tmp;
+ unsigned long me_regbase_size_tmp;
+ resource_size_t swap_regbase_tmp;
+ unsigned long swap_regbase_size_tmp;
+ resource_size_t regbase_tmp;
+ int result, error;
+
+ /* Allocate private memory */
+ if (alloc_private(dev, sizeof(struct me_private_data)) < 0)
+ return -ENOMEM;
+
+ pci_device = me_find_pci_dev(dev, it);
+ if (!pci_device)
+ return -EIO;
+ dev_private->pci_device = pci_device;
+ board = (struct me_board *)dev->board_ptr;
/* Enable PCI device and request PCI regions */
if (comedi_pci_enable(pci_device, ME_DRIVER_NAME) < 0) {
--
1.7.11
--
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