[PATCH] staging: comedi: refactor pcl711 driver to remove the forward declarations

From: H Hartley Sweeten
Date: Fri Apr 27 2012 - 20:13:53 EST


Move the module_init/module_exit routines and the associated
struct comedi_driver and other variables to the end of the source.
This is more typical of how other drivers are written and removes
the need for the forward declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Mori Hess <fmhess@xxxxxxxxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index ce6e514..fcb7cea 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -148,41 +148,8 @@ struct pcl711_board {
const struct comedi_lrange *ai_range_type;
};

-static const struct pcl711_board boardtypes[] = {
- {"pcl711", 0, 0, 0, 5, 8, 1, 0, &range_bipolar5},
- {"pcl711b", 1, 0, 0, 5, 8, 1, 7, &range_pcl711b_ai},
- {"acl8112hg", 0, 1, 0, 12, 16, 2, 15, &range_acl8112hg_ai},
- {"acl8112dg", 0, 1, 1, 9, 16, 2, 15, &range_acl8112dg_ai},
-};
-
#define this_board ((const struct pcl711_board *)dev->board_ptr)

-static int pcl711_attach(struct comedi_device *dev,
- struct comedi_devconfig *it);
-static int pcl711_detach(struct comedi_device *dev);
-static struct comedi_driver driver_pcl711 = {
- .driver_name = "pcl711",
- .module = THIS_MODULE,
- .attach = pcl711_attach,
- .detach = pcl711_detach,
- .board_name = &boardtypes[0].name,
- .num_names = ARRAY_SIZE(boardtypes),
- .offset = sizeof(struct pcl711_board),
-};
-
-static int __init driver_pcl711_init_module(void)
-{
- return comedi_driver_register(&driver_pcl711);
-}
-
-static void __exit driver_pcl711_cleanup_module(void)
-{
- comedi_driver_unregister(&driver_pcl711);
-}
-
-module_init(driver_pcl711_init_module);
-module_exit(driver_pcl711_cleanup_module);
-
struct pcl711_private {

int board;
@@ -512,21 +479,6 @@ static int pcl711_do_insn_bits(struct comedi_device *dev,
return 2;
}

-/* Free any resources that we have claimed */
-static int pcl711_detach(struct comedi_device *dev)
-{
- printk(KERN_INFO "comedi%d: pcl711: remove\n", dev->minor);
-
- if (dev->irq)
- free_irq(dev->irq, dev);
-
- if (dev->iobase)
- release_region(dev->iobase, PCL711_SIZE);
-
- return 0;
-}
-
-/* Initialization */
static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
int ret;
@@ -639,6 +591,48 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
return 0;
}

+static int pcl711_detach(struct comedi_device *dev)
+{
+ printk(KERN_INFO "comedi%d: pcl711: remove\n", dev->minor);
+
+ if (dev->irq)
+ free_irq(dev->irq, dev);
+
+ if (dev->iobase)
+ release_region(dev->iobase, PCL711_SIZE);
+
+ return 0;
+}
+
+static const struct pcl711_board boardtypes[] = {
+ { "pcl711", 0, 0, 0, 5, 8, 1, 0, &range_bipolar5 },
+ { "pcl711b", 1, 0, 0, 5, 8, 1, 7, &range_pcl711b_ai },
+ { "acl8112hg", 0, 1, 0, 12, 16, 2, 15, &range_acl8112hg_ai },
+ { "acl8112dg", 0, 1, 1, 9, 16, 2, 15, &range_acl8112dg_ai },
+};
+
+static struct comedi_driver driver_pcl711 = {
+ .driver_name = "pcl711",
+ .module = THIS_MODULE,
+ .attach = pcl711_attach,
+ .detach = pcl711_detach,
+ .board_name = &boardtypes[0].name,
+ .num_names = ARRAY_SIZE(boardtypes),
+ .offset = sizeof(struct pcl711_board),
+};
+
+static int __init driver_pcl711_init_module(void)
+{
+ return comedi_driver_register(&driver_pcl711);
+}
+module_init(driver_pcl711_init_module);
+
+static void __exit driver_pcl711_cleanup_module(void)
+{
+ comedi_driver_unregister(&driver_pcl711);
+}
+module_exit(driver_pcl711_cleanup_module);
+
MODULE_AUTHOR("Comedi http://www.comedi.org";);
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
--
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