From 5aac8294de60cd2ffac3236c7052571ed6c2d56d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 15 May 2012 17:36:01 -0700 Subject: [PATCH] staging: comedi: refactor ni_atmio driver and use module_comedi_driver Move the module_init/module_exit routines and the associated struct comedi_drive to the end of the source. This is more typical of how other drivers are written and removes the need for the forward declarations. Convert the driver to use the module_comedi_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Mori Hess Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_atmio.c | 92 +++++++++-------------- 1 file changed, 37 insertions(+), 55 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c index 647c228abfbf..02cf44b38590 100644 --- a/drivers/staging/comedi/drivers/ni_atmio.c +++ b/drivers/staging/comedi/drivers/ni_atmio.c @@ -343,49 +343,8 @@ static struct pnp_device_id device_ids[] = { MODULE_DEVICE_TABLE(pnp, device_ids); -static int ni_atmio_attach(struct comedi_device *dev, - struct comedi_devconfig *it); -static int ni_atmio_detach(struct comedi_device *dev); -static struct comedi_driver driver_atmio = { - .driver_name = "ni_atmio", - .module = THIS_MODULE, - .attach = ni_atmio_attach, - .detach = ni_atmio_detach, -}; - -static int __init driver_atmio_init_module(void) -{ - return comedi_driver_register(&driver_atmio); -} - -static void __exit driver_atmio_cleanup_module(void) -{ - comedi_driver_unregister(&driver_atmio); -} - -module_init(driver_atmio_init_module); -module_exit(driver_atmio_cleanup_module); - #include "ni_mio_common.c" -static int ni_getboardtype(struct comedi_device *dev); - -/* clean up allocated resources */ -static int ni_atmio_detach(struct comedi_device *dev) -{ - mio_common_detach(dev); - - if (dev->iobase) - release_region(dev->iobase, NI_SIZE); - if (dev->irq) - free_irq(dev->irq, dev); - - if (devpriv->isapnp_dev) - pnp_device_detach(devpriv->isapnp_dev); - - return 0; -} - static int ni_isapnp_find_board(struct pnp_dev **dev) { struct pnp_dev *isapnp_dev = NULL; @@ -424,6 +383,26 @@ static int ni_isapnp_find_board(struct pnp_dev **dev) return 0; } +static int ni_getboardtype(struct comedi_device *dev) +{ + int device_id = ni_read_eeprom(dev, 511); + int i; + + for (i = 0; i < n_ni_boards; i++) { + if (ni_boards[i].device_id == device_id) + return i; + + } + if (device_id == 255) + printk(" can't find board\n"); + else if (device_id == 0) + printk(" EEPROM read error (?) or device not found\n"); + else + printk(" unknown device ID %d -- contact author\n", device_id); + + return -1; +} + static int ni_atmio_attach(struct comedi_device *dev, struct comedi_devconfig *it) { @@ -518,22 +497,25 @@ static int ni_atmio_attach(struct comedi_device *dev, return 0; } -static int ni_getboardtype(struct comedi_device *dev) +static int ni_atmio_detach(struct comedi_device *dev) { - int device_id = ni_read_eeprom(dev, 511); - int i; + mio_common_detach(dev); - for (i = 0; i < n_ni_boards; i++) { - if (ni_boards[i].device_id == device_id) - return i; + if (dev->iobase) + release_region(dev->iobase, NI_SIZE); + if (dev->irq) + free_irq(dev->irq, dev); - } - if (device_id == 255) - printk(" can't find board\n"); - else if (device_id == 0) - printk(" EEPROM read error (?) or device not found\n"); - else - printk(" unknown device ID %d -- contact author\n", device_id); + if (devpriv->isapnp_dev) + pnp_device_detach(devpriv->isapnp_dev); - return -1; + return 0; } + +static struct comedi_driver ni_atmio_driver = { + .driver_name = "ni_atmio", + .module = THIS_MODULE, + .attach = ni_atmio_attach, + .detach = ni_atmio_detach, +}; +module_comedi_driver(ni_atmio_driver); -- 2.39.5