Staging: comedi: fix checkpatch.pl issues in comedi_bond.c
This fixes a number of the issues found by checkpatch.pl in the comedi_bond.c file. Cc: Calin A. Culianu <calin@ajvar.org> Cc: David Schleef <ds@schleef.org> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
Родитель
e55c95a3be
Коммит
e7f2aa3455
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@ -23,7 +23,8 @@
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*/
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/*
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Driver: comedi_bond
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Description: A driver to 'bond' (merge) multiple subdevices from multiple devices together as one.
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Description: A driver to 'bond' (merge) multiple subdevices from multiple
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devices together as one.
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Devices:
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Author: ds
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Updated: Mon, 10 Oct 00:18:25 -0500
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@ -102,18 +103,23 @@ MODULE_LICENSE("GPL");
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# define STR(x) STR1(x)
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#endif
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int debug = 0;
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int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug,
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"If true, print extra cryptic debugging output useful only to developers probably.");
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MODULE_PARM_DESC(debug, "If true, print extra cryptic debugging output useful"
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"only to developers.");
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#define LOG_MSG(x...) printk(KERN_INFO MODULE_NAME": "x)
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#define DEBUG(x...) do { if(debug) printk(KERN_DEBUG MODULE_NAME": DEBUG: "x); } while(0)
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#define DEBUG(x...) \
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do { \
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if (debug) \
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printk(KERN_DEBUG MODULE_NAME": DEBUG: "x); \
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} while (0)
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#define WARNING(x...) printk(KERN_WARNING MODULE_NAME ": WARNING: "x)
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#define ERROR(x...) printk(KERN_ERR MODULE_NAME ": INTERNAL ERROR: "x)
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MODULE_AUTHOR("Calin A. Culianu");
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MODULE_DESCRIPTION(MODULE_NAME
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": A driver for COMEDI to bond multiple COMEDI devices together as one. In the words of John Lennon: 'And the world will live as one...'");
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MODULE_DESCRIPTION(MODULE_NAME "A driver for COMEDI to bond multiple COMEDI "
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"devices together as one. In the words of John Lennon: "
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"'And the world will live as one...'");
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/*
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* Board descriptions for two imaginary boards. Describing the
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@ -127,8 +133,8 @@ typedef struct BondingBoard BondingBoard;
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static const BondingBoard bondingBoards[] = {
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{
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name: MODULE_NAME,
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},
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.name = MODULE_NAME,
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},
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};
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/*
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@ -142,8 +148,9 @@ struct BondedDevice {
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unsigned subdev;
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unsigned subdev_type;
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unsigned nchans;
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unsigned chanid_offset; /* The offset into our unified linear channel-id's
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of chanid 0 on this subdevice. */
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unsigned chanid_offset; /* The offset into our unified linear
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channel-id's of chanid 0 on this
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subdevice. */
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};
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typedef struct BondedDevice BondedDevice;
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@ -172,19 +179,20 @@ typedef struct Private Private;
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* the board, and also about the kernel module that contains
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* the device code.
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*/
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static int bonding_attach(comedi_device * dev, comedi_devconfig * it);
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static int bonding_detach(comedi_device * dev);
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static int bonding_attach(comedi_device *dev, comedi_devconfig *it);
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static int bonding_detach(comedi_device *dev);
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/** Build Private array of all devices.. */
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static int doDevConfig(comedi_device * dev, comedi_devconfig * it);
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static void doDevUnconfig(comedi_device * dev);
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/* Ugly implementation of realloc that always copies memory around -- I'm lazy, what can I say? I like to do wasteful memcopies.. :) */
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static int doDevConfig(comedi_device *dev, comedi_devconfig *it);
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static void doDevUnconfig(comedi_device *dev);
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/* Ugly implementation of realloc that always copies memory around -- I'm lazy,
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* what can I say? I like to do wasteful memcopies.. :) */
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static void *Realloc(const void *ptr, size_t len, size_t old_len);
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static comedi_driver driver_bonding = {
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driver_name:MODULE_NAME,
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module:THIS_MODULE,
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attach:bonding_attach,
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detach:bonding_detach,
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.driver_name = MODULE_NAME,
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.module = THIS_MODULE,
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.attach = bonding_attach,
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.detach = bonding_detach,
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/* It is not necessary to implement the following members if you are
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* writing a driver for a ISA PnP or PCI card */
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/* Most drivers will support multiple types of boards by
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@ -203,15 +211,15 @@ static comedi_driver driver_bonding = {
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* the type of board in software. ISA PnP, PCI, and PCMCIA
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* devices are such boards.
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*/
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board_name:&bondingBoards[0].name,
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offset:sizeof(BondingBoard),
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num_names:sizeof(bondingBoards) / sizeof(BondingBoard),
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.board_name = &bondingBoards[0].name,
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.offset = sizeof(BondingBoard),
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.num_names = sizeof(bondingBoards) / sizeof(BondingBoard),
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};
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static int bonding_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data);
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static int bonding_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data);
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static int bonding_dio_insn_bits(comedi_device *dev, comedi_subdevice *s,
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comedi_insn *insn, lsampl_t *data);
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static int bonding_dio_insn_config(comedi_device *dev, comedi_subdevice *s,
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comedi_insn *insn, lsampl_t *data);
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/*
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* Attach is called by the Comedi core to configure the driver
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@ -219,35 +227,35 @@ static int bonding_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
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* in the driver structure, dev->board_ptr contains that
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* address.
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*/
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static int bonding_attach(comedi_device * dev, comedi_devconfig * it)
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static int bonding_attach(comedi_device *dev, comedi_devconfig *it)
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{
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comedi_subdevice *s;
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LOG_MSG("comedi%d\n", dev->minor);
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/*
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* Allocate the private structure area. alloc_private() is a
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* convenient macro defined in comedidev.h.
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*/
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/*
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* Allocate the private structure area. alloc_private() is a
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* convenient macro defined in comedidev.h.
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*/
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if (alloc_private(dev, sizeof(Private)) < 0)
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return -ENOMEM;
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/*
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* Setup our bonding from config params.. sets up our Private struct..
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*/
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/*
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* Setup our bonding from config params.. sets up our Private struct..
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*/
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if (!doDevConfig(dev, it))
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return -EINVAL;
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/*
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* Initialize dev->board_name. Note that we can use the "thisboard"
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* macro now, since we just initialized it in the last line.
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*/
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/*
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* Initialize dev->board_name. Note that we can use the "thisboard"
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* macro now, since we just initialized it in the last line.
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*/
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dev->board_name = devpriv->name;
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/*
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* Allocate the subdevice structures. alloc_subdevice() is a
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* convenient macro defined in comedidev.h.
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*/
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/*
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* Allocate the subdevice structures. alloc_subdevice() is a
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* convenient macro defined in comedidev.h.
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*/
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if (alloc_subdevices(dev, 1) < 0)
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return -ENOMEM;
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@ -260,7 +268,10 @@ static int bonding_attach(comedi_device * dev, comedi_devconfig * it)
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s->insn_bits = bonding_dio_insn_bits;
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s->insn_config = bonding_dio_insn_config;
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LOG_MSG("attached with %u DIO channels coming from %u different subdevices all bonded together. John Lennon would be proud!\n", devpriv->nchans, devpriv->ndevs);
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LOG_MSG("attached with %u DIO channels coming from %u different "
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"subdevices all bonded together. "
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"John Lennon would be proud!\n",
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devpriv->nchans, devpriv->ndevs);
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return 1;
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}
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@ -273,7 +284,7 @@ static int bonding_attach(comedi_device * dev, comedi_devconfig * it)
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* allocated by _attach(). dev->private and dev->subdevices are
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* deallocated automatically by the core.
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*/
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static int bonding_detach(comedi_device * dev)
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static int bonding_detach(comedi_device *dev)
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{
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LOG_MSG("comedi%d: remove\n", dev->minor);
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doDevUnconfig(dev);
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@ -285,8 +296,8 @@ static int bonding_detach(comedi_device * dev)
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* useful to applications if you implement the insn_bits interface.
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* This allows packed reading/writing of the DIO channels. The
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* comedi core can convert between insn_bits and insn_read/write */
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static int bonding_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data)
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static int bonding_dio_insn_bits(comedi_device *dev, comedi_subdevice *s,
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comedi_insn *insn, lsampl_t *data)
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{
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#define LSAMPL_BITS (sizeof(lsampl_t)*8)
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unsigned nchans = LSAMPL_BITS, num_done = 0, i;
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@ -303,8 +314,8 @@ static int bonding_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
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/* Grab the channel mask and data of only the bits corresponding
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to this subdevice.. need to shift them to zero position of
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course. */
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lsampl_t subdevMask = ((1 << bdev->nchans) - 1); /* Bits corresponding
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to this subdev. */
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/* Bits corresponding to this subdev. */
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lsampl_t subdevMask = ((1 << bdev->nchans) - 1);
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lsampl_t writeMask, dataBits;
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/* Argh, we have >= LSAMPL_BITS chans.. take all bits */
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@ -332,8 +343,8 @@ static int bonding_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
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return insn->n;
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}
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static int bonding_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data)
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static int bonding_dio_insn_config(comedi_device *dev, comedi_subdevice *s,
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comedi_insn *insn, lsampl_t *data)
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{
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int chan = CR_CHAN(insn->chanspec), ret, io_bits = s->io_bits;
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unsigned int io;
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@ -365,7 +376,8 @@ static int bonding_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
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return -EINVAL;
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break;
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}
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chan -= bdev->chanid_offset; /* 'real' channel id for this subdev.. */
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/* 'real' channel id for this subdev.. */
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chan -= bdev->chanid_offset;
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ret = comedi_dio_config(bdev->dev, bdev->subdev, chan, io);
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if (ret != 1)
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return -EINVAL;
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@ -377,16 +389,15 @@ static int bonding_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
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static void *Realloc(const void *oldmem, size_t newlen, size_t oldlen)
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{
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#define MIN(a,b) (a < b ? a : b)
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void *newmem = kmalloc(newlen, GFP_KERNEL);
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if (newmem && oldmem)
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memcpy(newmem, oldmem, MIN(oldlen, newlen));
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if (oldmem)
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kfree(oldmem);
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memcpy(newmem, oldmem, min(oldlen, newlen));
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kfree(oldmem);
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return newmem;
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}
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static int doDevConfig(comedi_device * dev, comedi_devconfig * it)
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static int doDevConfig(comedi_device *dev, comedi_devconfig *it)
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{
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int i;
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comedi_t *devs_opened[COMEDI_NUM_BOARD_MINORS];
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@ -428,8 +439,11 @@ static int doDevConfig(comedi_device * dev, comedi_devconfig * it)
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/* Do DIO, as that's all we support now.. */
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while ((sdev = comedi_find_subdevice_by_type(d, COMEDI_SUBD_DIO,
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sdev + 1)) > -1) {
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if ((nchans = comedi_get_n_channels(d, sdev)) <= 0) {
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ERROR("comedi_get_n_channels() returned %d on minor %u subdev %d!\n", nchans, minor, sdev);
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nchans = comedi_get_n_channels(d, sdev);
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if (nchans <= 0) {
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ERROR("comedi_get_n_channels() returned %d "
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"on minor %u subdev %d!\n",
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nchans, minor, sdev);
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return 0;
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}
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bdev = kmalloc(sizeof(*bdev), GFP_KERNEL);
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@ -448,7 +462,8 @@ static int doDevConfig(comedi_device * dev, comedi_devconfig * it)
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while (nchans--)
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devpriv->chanIdDevMap[devpriv->nchans++] = bdev;
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/* Now put bdev pointer at end of devpriv->devs array list.. */
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/* Now put bdev pointer at end of devpriv->devs array
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* list.. */
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/* ergh.. ugly.. we need to realloc :( */
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tmp = devpriv->ndevs * sizeof(bdev);
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@ -456,7 +471,8 @@ static int doDevConfig(comedi_device * dev, comedi_devconfig * it)
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Realloc(devpriv->devs,
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++devpriv->ndevs * sizeof(bdev), tmp);
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if (!devpriv->devs) {
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ERROR("Could not allocate memory. Out of memory?");
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ERROR("Could not allocate memory. "
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"Out of memory?");
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return 0;
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}
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@ -484,7 +500,7 @@ static int doDevConfig(comedi_device * dev, comedi_devconfig * it)
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return 1;
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}
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static void doDevUnconfig(comedi_device * dev)
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static void doDevUnconfig(comedi_device *dev)
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{
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unsigned long devs_closed = 0;
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@ -499,10 +515,8 @@ static void doDevUnconfig(comedi_device * dev)
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}
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kfree(bdev);
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}
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if (devpriv->devs) {
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kfree(devpriv->devs);
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devpriv->devs = 0;
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}
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kfree(devpriv->devs);
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devpriv->devs = 0;
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kfree(devpriv);
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dev->private = 0;
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}
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