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Date: Wed, 18 Jul 2012 18:46:07 -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 47/90] staging: comedi: cb_pcimdas: 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/cb_pcimdas.c | 61 +++++++++++++++--------------
1 file changed, 32 insertions(+), 29 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index 2977f2d..8999a72 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -175,30 +175,11 @@ static int cb_pcimdas_ao_rinsn(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data);
-/*
- * Attach is called by the Comedi core to configure the driver
- * for a particular board. If you specified a board_name array
- * in the driver structure, dev->board_ptr contains that
- * address.
- */
-static int cb_pcimdas_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
+static struct pci_dev *cb_pcimdas_find_pci_dev(struct comedi_device *dev,
+ struct comedi_devconfig *it)
{
- struct comedi_subdevice *s;
struct pci_dev *pcidev = NULL;
int index;
- int ret;
- /* int i; */
-
-/*
- * Allocate the private structure area.
- */
- if (alloc_private(dev, sizeof(struct cb_pcimdas_private)) < 0)
- return -ENOMEM;
-
-/*
- * Probe the device to determine what device in the series it is.
- */
for_each_pci_dev(pcidev) {
/* is it not a computer boards card? */
@@ -217,21 +198,43 @@ static int cb_pcimdas_attach(struct comedi_device *dev,
continue;
}
}
- devpriv->pci_dev = pcidev;
dev->board_ptr = cb_pcimdas_boards + index;
- goto found;
+ dev_dbg(dev->class_dev,
+ "Found %s on bus %i, slot %i\n",
+ cb_pcimdas_boards[index].name,
+ pcidev->bus->number,
+ PCI_SLOT(pcidev->devfn));
+ return pcidev;
}
}
-
dev_err(dev->class_dev,
"No supported ComputerBoards/MeasurementComputing card found on requested position\n");
- return -EIO;
+ return NULL;
+}
-found:
+/*
+ * Attach is called by the Comedi core to configure the driver
+ * for a particular board. If you specified a board_name array
+ * in the driver structure, dev->board_ptr contains that
+ * address.
+ */
+static int cb_pcimdas_attach(struct comedi_device *dev,
+ struct comedi_devconfig *it)
+{
+ struct pci_dev *pcidev;
+ struct comedi_subdevice *s;
+ int ret;
- dev_dbg(dev->class_dev, "Found %s on bus %i, slot %i\n",
- cb_pcimdas_boards[index].name, pcidev->bus->number,
- PCI_SLOT(pcidev->devfn));
+/*
+ * Allocate the private structure area.
+ */
+ if (alloc_private(dev, sizeof(struct cb_pcimdas_private)) < 0)
+ return -ENOMEM;
+
+ pcidev = cb_pcimdas_find_pci_dev(dev, it);
+ if (!pcidev)
+ return -EIO;
+ devpriv->pci_dev = pcidev;
/* Warn about non-tested features */
switch (thisboard->device_id) {
--
1.7.11
--
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