staging: comedi: ni_6527: tidy up ni6527_auto_attach()

For aesthetics, allocate the private data memory before attempting
to enable the PCI device.

Add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/ni_6527.c

@@ -363,14 +363,14 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
 	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
 	if (!devpriv)
 		return -ENOMEM;
 
+	ret = comedi_pci_enable(dev);
+	if (ret)
+		return ret;
+
 	devpriv->mmio_base = pci_ioremap_bar(pcidev, 1);
 	if (!devpriv->mmio_base)
 		return -ENOMEM;
@@ -390,21 +390,23 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
+	/* Digital Input subdevice */
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_DI;
 	s->subdev_flags	= SDF_READABLE;
 	s->n_chan	= 24;
-	s->range_table = &range_digital;
 	s->maxdata	= 1;
+	s->range_table	= &range_digital;
 	s->insn_config	= ni6527_di_insn_config;
 	s->insn_bits	= ni6527_di_insn_bits;
 
+	/* Digital Output subdevice */
 	s = &dev->subdevices[1];
 	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+	s->subdev_flags	= SDF_WRITABLE;
 	s->n_chan	= 24;
-	s->range_table = &range_unknown;  /* FIXME: actually conductance */
 	s->maxdata	= 1;
+	s->range_table	= &range_digital;
 	s->insn_bits	= ni6527_do_insn_bits;
 
 	/* Edge detection interrupt subdevice */