diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-11-13 17:05:58 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-06 13:52:16 -0800 |
commit | 476b847733636ce5765093f5d1a369cc470e78e6 (patch) | |
tree | cb651fa5fd6e3fe4be5c9bdd785d3754ff5f4298 /drivers/staging | |
parent | e0dcef71f6ea63f80631d2e87d06a9ae05624eef (diff) | |
download | op-kernel-dev-476b847733636ce5765093f5d1a369cc470e78e6.zip op-kernel-dev-476b847733636ce5765093f5d1a369cc470e78e6.tar.gz |
Staging: comedi: fix checkpatch.pl errors in comedi_fops.c
There are still some >80 character lines in there, but
this catches the majority of the issues.
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: David Schleef <ds@schleef.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 528 |
1 files changed, 263 insertions, 265 deletions
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index f445664..018c964 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -45,10 +45,10 @@ #include "comedidev.h" #include <linux/cdev.h> -#include <asm/io.h> -#include <asm/uaccess.h> +#include <linux/io.h> +#include <linux/uaccess.h> -//#include "kvmem.h" +/* #include "kvmem.h" */ MODULE_AUTHOR("http://www.comedi.org"); MODULE_DESCRIPTION("Comedi core module"); @@ -60,42 +60,44 @@ module_param(comedi_debug, int, 0644); #endif static DEFINE_SPINLOCK(comedi_file_info_table_lock); -static struct comedi_device_file_info* comedi_file_info_table[COMEDI_NUM_MINORS]; - -static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg); -static int do_bufconfig_ioctl(comedi_device * dev, void *arg); -static int do_devinfo_ioctl(comedi_device * dev, comedi_devinfo * arg, - struct file *file); -static int do_subdinfo_ioctl(comedi_device * dev, comedi_subdinfo * arg, - void *file); -static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg); -static int do_bufinfo_ioctl(comedi_device * dev, void *arg); -static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file); -static int do_lock_ioctl(comedi_device * dev, unsigned int arg, void *file); -static int do_unlock_ioctl(comedi_device * dev, unsigned int arg, void *file); -static int do_cancel_ioctl(comedi_device * dev, unsigned int arg, void *file); -static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file); -static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file); -static int do_insn_ioctl(comedi_device * dev, void *arg, void *file); -static int do_poll_ioctl(comedi_device * dev, unsigned int subd, void *file); - -void do_become_nonbusy(comedi_device * dev, comedi_subdevice * s); -static int do_cancel(comedi_device * dev, comedi_subdevice * s); +static struct comedi_device_file_info + *comedi_file_info_table[COMEDI_NUM_MINORS]; + +static int do_devconfig_ioctl(comedi_device *dev, comedi_devconfig *arg); +static int do_bufconfig_ioctl(comedi_device *dev, void *arg); +static int do_devinfo_ioctl(comedi_device *dev, comedi_devinfo *arg, + struct file *file); +static int do_subdinfo_ioctl(comedi_device *dev, comedi_subdinfo *arg, + void *file); +static int do_chaninfo_ioctl(comedi_device *dev, comedi_chaninfo *arg); +static int do_bufinfo_ioctl(comedi_device *dev, void *arg); +static int do_cmd_ioctl(comedi_device *dev, void *arg, void *file); +static int do_lock_ioctl(comedi_device *dev, unsigned int arg, void *file); +static int do_unlock_ioctl(comedi_device *dev, unsigned int arg, void *file); +static int do_cancel_ioctl(comedi_device *dev, unsigned int arg, void *file); +static int do_cmdtest_ioctl(comedi_device *dev, void *arg, void *file); +static int do_insnlist_ioctl(comedi_device *dev, void *arg, void *file); +static int do_insn_ioctl(comedi_device *dev, void *arg, void *file); +static int do_poll_ioctl(comedi_device *dev, unsigned int subd, void *file); + +extern void do_become_nonbusy(comedi_device *dev, comedi_subdevice *s); +static int do_cancel(comedi_device *dev, comedi_subdevice *s); static int comedi_fasync(int fd, struct file *file, int on); -static int is_device_busy(comedi_device * dev); +static int is_device_busy(comedi_device *dev); #ifdef HAVE_UNLOCKED_IOCTL static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) + unsigned long arg) #else static int comedi_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) + unsigned int cmd, unsigned long arg) #endif { const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; int rc; @@ -162,7 +164,7 @@ static int comedi_ioctl(struct inode *inode, struct file *file, break; } - done: +done: mutex_unlock(&dev->mutex); return rc; } @@ -180,7 +182,7 @@ static int comedi_ioctl(struct inode *inode, struct file *file, writes: none */ -static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg) +static int do_devconfig_ioctl(comedi_device *dev, comedi_devconfig *arg) { comedi_devconfig it; int ret; @@ -193,8 +195,7 @@ static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg) if (arg == NULL) { if (is_device_busy(dev)) return -EBUSY; - if(dev->attached) - { + if (dev->attached) { struct module *driver_module = dev->driver->module; comedi_device_detach(dev); module_put(driver_module); @@ -208,7 +209,7 @@ static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg) it.board_name[COMEDI_NAMELEN - 1] = 0; if (comedi_aux_data(it.options, 0) && - it.options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) { + it.options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) { int bit_shift; aux_len = it.options[COMEDI_DEVCONF_AUX_DATA_LENGTH]; if (aux_len < 0) @@ -219,24 +220,23 @@ static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg) return -ENOMEM; if (copy_from_user(aux_data, - comedi_aux_data(it.options, 0), aux_len)) { + comedi_aux_data(it.options, 0), aux_len)) { vfree(aux_data); return -EFAULT; } it.options[COMEDI_DEVCONF_AUX_DATA_LO] = - (unsigned long)aux_data; + (unsigned long)aux_data; if (sizeof(void *) > sizeof(int)) { bit_shift = sizeof(int) * 8; it.options[COMEDI_DEVCONF_AUX_DATA_HI] = - ((unsigned long)aux_data) >> bit_shift; + ((unsigned long)aux_data) >> bit_shift; } else it.options[COMEDI_DEVCONF_AUX_DATA_HI] = 0; } ret = comedi_device_attach(dev, &it); - if(ret == 0) - { - if(!try_module_get(dev->driver->module)) { + if (ret == 0) { + if (!try_module_get(dev->driver->module)) { comedi_device_detach(dev); return -ENOSYS; } @@ -262,7 +262,7 @@ static int do_devconfig_ioctl(comedi_device * dev, comedi_devconfig * arg) modified bufconfig at arg */ -static int do_bufconfig_ioctl(comedi_device * dev, void *arg) +static int do_bufconfig_ioctl(comedi_device *dev, void *arg) { comedi_bufconfig bc; comedi_async *async; @@ -329,7 +329,7 @@ static int do_bufconfig_ioctl(comedi_device * dev, void *arg) bc.size = async->prealloc_bufsz; bc.maximum_size = async->max_bufsize; - copyback: +copyback: if (copy_to_user(arg, &bc, sizeof(comedi_bufconfig))) return -EFAULT; @@ -350,14 +350,17 @@ static int do_bufconfig_ioctl(comedi_device * dev, void *arg) devinfo structure */ -static int do_devinfo_ioctl(comedi_device * dev, comedi_devinfo * arg, - struct file *file) +static int do_devinfo_ioctl(comedi_device *dev, comedi_devinfo *arg, + struct file *file) { comedi_devinfo devinfo; const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); - comedi_subdevice *read_subdev = comedi_get_read_subdevice(dev_file_info); - comedi_subdevice *write_subdev = comedi_get_write_subdevice(dev_file_info); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); + comedi_subdevice *read_subdev = + comedi_get_read_subdevice(dev_file_info); + comedi_subdevice *write_subdev = + comedi_get_write_subdevice(dev_file_info); memset(&devinfo, 0, sizeof(devinfo)); @@ -367,16 +370,15 @@ static int do_devinfo_ioctl(comedi_device * dev, comedi_devinfo * arg, memcpy(devinfo.driver_name, dev->driver->driver_name, COMEDI_NAMELEN); memcpy(devinfo.board_name, dev->board_name, COMEDI_NAMELEN); - if (read_subdev) { + if (read_subdev) devinfo.read_subdevice = read_subdev - dev->subdevices; - } else { + else devinfo.read_subdevice = -1; - } - if (write_subdev) { + + if (write_subdev) devinfo.write_subdevice = write_subdev - dev->subdevices; - } else { + else devinfo.write_subdevice = -1; - } if (copy_to_user(arg, &devinfo, sizeof(comedi_devinfo))) return -EFAULT; @@ -398,8 +400,8 @@ static int do_devinfo_ioctl(comedi_device * dev, comedi_devinfo * arg, array of subdevice info structures at arg */ -static int do_subdinfo_ioctl(comedi_device * dev, comedi_subdinfo * arg, - void *file) +static int do_subdinfo_ioctl(comedi_device *dev, comedi_subdinfo *arg, + void *file) { int ret, i; comedi_subdinfo *tmp, *us; @@ -425,8 +427,7 @@ static int do_subdinfo_ioctl(comedi_device * dev, comedi_subdinfo * arg, us->maxdata = s->maxdata; if (s->range_table) { us->range_type = - (i << 24) | (0 << 16) | (s-> - range_table->length); + (i << 24) | (0 << 16) | (s->range_table->length); } else { us->range_type = 0; /* XXX */ } @@ -458,7 +459,7 @@ static int do_subdinfo_ioctl(comedi_device * dev, comedi_subdinfo * arg, } ret = copy_to_user(arg, tmp, - dev->n_subdevices * sizeof(comedi_subdinfo)); + dev->n_subdevices * sizeof(comedi_subdinfo)); kfree(tmp); @@ -479,7 +480,7 @@ static int do_subdinfo_ioctl(comedi_device * dev, comedi_subdinfo * arg, arrays at elements of chaninfo structure */ -static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg) +static int do_chaninfo_ioctl(comedi_device *dev, comedi_chaninfo *arg) { comedi_subdevice *s; comedi_chaninfo it; @@ -495,7 +496,7 @@ static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg) if (s->maxdata || !s->maxdata_list) return -EINVAL; if (copy_to_user(it.maxdata_list, s->maxdata_list, - s->n_chan * sizeof(lsampl_t))) + s->n_chan * sizeof(lsampl_t))) return -EFAULT; } @@ -503,7 +504,7 @@ static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg) if (!s->flaglist) return -EINVAL; if (copy_to_user(it.flaglist, s->flaglist, - s->n_chan * sizeof(unsigned int))) + s->n_chan * sizeof(unsigned int))) return -EFAULT; } @@ -516,11 +517,14 @@ static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg) int x; x = (dev->minor << 28) | (it.subdev << 24) | (i << 16) | - (s->range_table_list[i]->length); + (s->range_table_list[i]->length); put_user(x, it.rangelist + i); } - //if(copy_to_user(it.rangelist,s->range_type_list,s->n_chan*sizeof(unsigned int))) - // return -EFAULT; +#if 0 + if (copy_to_user(it.rangelist, s->range_type_list, + s->n_chan*sizeof(unsigned int))) + return -EFAULT; +#endif } return 0; @@ -540,7 +544,7 @@ static int do_chaninfo_ioctl(comedi_device * dev, comedi_chaninfo * arg) modified bufinfo at arg */ -static int do_bufinfo_ioctl(comedi_device * dev, void *arg) +static int do_bufinfo_ioctl(comedi_device *dev, void *arg) { comedi_bufinfo bi; comedi_subdevice *s; @@ -569,15 +573,15 @@ static int do_bufinfo_ioctl(comedi_device * dev, void *arg) comedi_buf_read_free(async, bi.bytes_read); if (!(comedi_get_subdevice_runflags(s) & (SRF_ERROR | - SRF_RUNNING)) - && async->buf_write_count == async->buf_read_count) { + SRF_RUNNING)) + && async->buf_write_count == async->buf_read_count) { do_become_nonbusy(dev, s); } } if (bi.bytes_written && (s->subdev_flags & SDF_CMD_WRITE)) { bi.bytes_written = - comedi_buf_write_alloc(async, bi.bytes_written); + comedi_buf_write_alloc(async, bi.bytes_written); comedi_buf_write_free(async, bi.bytes_written); } @@ -586,15 +590,15 @@ static int do_bufinfo_ioctl(comedi_device * dev, void *arg) bi.buf_read_count = async->buf_read_count; bi.buf_read_ptr = async->buf_read_ptr; - copyback: +copyback: if (copy_to_user(arg, &bi, sizeof(comedi_bufinfo))) return -EFAULT; return 0; } -static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, - void *file); +static int parse_insn(comedi_device *dev, comedi_insn *insn, lsampl_t *data, + void *file); /* * COMEDI_INSNLIST * synchronous instructions @@ -612,7 +616,7 @@ static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, */ /* arbitrary limits */ #define MAX_SAMPLES 256 -static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file) +static int do_insnlist_ioctl(comedi_device *dev, void *arg, void *file) { comedi_insnlist insnlist; comedi_insn *insns = NULL; @@ -638,7 +642,7 @@ static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file) } if (copy_from_user(insns, insnlist.insns, - sizeof(comedi_insn) * insnlist.n_insns)) { + sizeof(comedi_insn) * insnlist.n_insns)) { DPRINTK("copy_from_user failed\n"); ret = -EFAULT; goto error; @@ -652,7 +656,7 @@ static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file) } if (insns[i].insn & INSN_MASK_WRITE) { if (copy_from_user(data, insns[i].data, - insns[i].n * sizeof(lsampl_t))) { + insns[i].n * sizeof(lsampl_t))) { DPRINTK("copy_from_user failed\n"); ret = -EFAULT; goto error; @@ -663,7 +667,7 @@ static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file) goto error; if (insns[i].insn & INSN_MASK_READ) { if (copy_to_user(insns[i].data, data, - insns[i].n * sizeof(lsampl_t))) { + insns[i].n * sizeof(lsampl_t))) { DPRINTK("copy_to_user failed\n"); ret = -EFAULT; goto error; @@ -673,20 +677,19 @@ static int do_insnlist_ioctl(comedi_device * dev, void *arg, void *file) schedule(); } - error: - if (insns) - kfree(insns); - if (data) - kfree(data); +error: + kfree(insns); + kfree(data); if (ret < 0) return ret; return i; } -static int check_insn_config_length(comedi_insn * insn, lsampl_t * data) +static int check_insn_config_length(comedi_insn *insn, lsampl_t *data) { - if(insn->n < 1) return -EINVAL; + if (insn->n < 1) + return -EINVAL; switch (data[0]) { case INSN_CONFIG_DIO_OUTPUT: @@ -730,21 +733,22 @@ static int check_insn_config_length(comedi_insn * insn, lsampl_t * data) if (insn->n == 5) return 0; break; - //by default we allow the insn since we don't have checks for all possible cases yet + /* by default we allow the insn since we don't have checks for + * all possible cases yet */ default: - rt_printk - ("comedi: no check for data length of config insn id %i is implemented.\n" - " Add a check to %s in %s.\n" - " Assuming n=%i is correct.\n", data[0], __FUNCTION__, - __FILE__, insn->n); + rt_printk("comedi: no check for data length of config insn id " + "%i is implemented.\n" + " Add a check to %s in %s.\n" + " Assuming n=%i is correct.\n", data[0], __func__, + __FILE__, insn->n); return 0; break; } return -EINVAL; } -static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, - void *file) +static int parse_insn(comedi_device *dev, comedi_insn *insn, lsampl_t *data, + void *file) { comedi_subdevice *s; int ret = 0; @@ -833,7 +837,8 @@ static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, goto out; } - if ((ret = check_chanlist(s, 1, &insn->chanspec)) < 0) { + ret = check_chanlist(s, 1, &insn->chanspec); + if (ret < 0) { ret = -EINVAL; DPRINTK("bad chanspec\n"); goto out; @@ -851,8 +856,8 @@ static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, break; case INSN_WRITE: maxdata = s->maxdata_list - ? s->maxdata_list[CR_CHAN(insn->chanspec)] - : s->maxdata; + ? s->maxdata_list[CR_CHAN(insn->chanspec)] + : s->maxdata; for (i = 0; i < insn->n; ++i) { if (data[i] > maxdata) { ret = -EINVAL; @@ -884,7 +889,7 @@ static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, s->busy = NULL; } - out: +out: return ret; } @@ -902,7 +907,7 @@ static int parse_insn(comedi_device * dev, comedi_insn * insn, lsampl_t * data, * writes: * data (for reads) */ -static int do_insn_ioctl(comedi_device * dev, void *arg, void *file) +static int do_insn_ioctl(comedi_device *dev, void *arg, void *file) { comedi_insn insn; lsampl_t *data = NULL; @@ -939,9 +944,8 @@ static int do_insn_ioctl(comedi_device * dev, void *arg, void *file) } ret = insn.n; - error: - if (data) - kfree(data); +error: + kfree(data); return ret; } @@ -961,7 +965,7 @@ static int do_insn_ioctl(comedi_device * dev, void *arg, void *file) modified cmd structure at arg */ -static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) +static int do_cmd_ioctl(comedi_device *dev, void *arg, void *file) { comedi_cmd user_cmd; comedi_subdevice *s; @@ -973,7 +977,7 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) DPRINTK("bad cmd address\n"); return -EFAULT; } - // save user's chanlist pointer so it can be restored later + /* save user's chanlist pointer so it can be restored later */ chanlist_saver = user_cmd.chanlist; if (user_cmd.subdev >= dev->n_subdevices) { @@ -1024,13 +1028,12 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) goto cleanup; } - if (async->cmd.chanlist) - kfree(async->cmd.chanlist); + kfree(async->cmd.chanlist); async->cmd = user_cmd; async->cmd.data = NULL; /* load channel/gain list */ async->cmd.chanlist = - kmalloc(async->cmd.chanlist_len * sizeof(int), GFP_KERNEL); + kmalloc(async->cmd.chanlist_len * sizeof(int), GFP_KERNEL); if (!async->cmd.chanlist) { DPRINTK("allocation failed\n"); ret = -ENOMEM; @@ -1038,15 +1041,15 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) } if (copy_from_user(async->cmd.chanlist, user_cmd.chanlist, - async->cmd.chanlist_len * sizeof(int))) { + async->cmd.chanlist_len * sizeof(int))) { DPRINTK("fault reading chanlist\n"); ret = -EFAULT; goto cleanup; } /* make sure each element in channel/gain list is valid */ - if ((ret = check_chanlist(s, async->cmd.chanlist_len, - async->cmd.chanlist)) < 0) { + ret = check_chanlist(s, async->cmd.chanlist_len, async->cmd.chanlist); + if (ret < 0) { DPRINTK("bad chanlist\n"); goto cleanup; } @@ -1056,7 +1059,7 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) if (async->cmd.flags & TRIG_BOGUS || ret) { DPRINTK("test returned %d\n", ret); user_cmd = async->cmd; - // restore chanlist pointer before copying back + /* restore chanlist pointer before copying back */ user_cmd.chanlist = chanlist_saver; user_cmd.data = NULL; if (copy_to_user(arg, &user_cmd, sizeof(comedi_cmd))) { @@ -1077,11 +1080,10 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) comedi_reset_async_buf(async); async->cb_mask = - COMEDI_CB_EOA | COMEDI_CB_BLOCK | COMEDI_CB_ERROR | - COMEDI_CB_OVERFLOW; - if (async->cmd.flags & TRIG_WAKE_EOS) { + COMEDI_CB_EOA | COMEDI_CB_BLOCK | COMEDI_CB_ERROR | + COMEDI_CB_OVERFLOW; + if (async->cmd.flags & TRIG_WAKE_EOS) async->cb_mask |= COMEDI_CB_EOS; - } comedi_set_subdevice_runflags(s, ~0, SRF_USER | SRF_RUNNING); @@ -1096,7 +1098,7 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) if (ret == 0) return 0; - cleanup: +cleanup: do_become_nonbusy(dev, s); return ret; @@ -1117,7 +1119,7 @@ static int do_cmd_ioctl(comedi_device * dev, void *arg, void *file) modified cmd structure at arg */ -static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) +static int do_cmdtest_ioctl(comedi_device *dev, void *arg, void *file) { comedi_cmd user_cmd; comedi_subdevice *s; @@ -1129,7 +1131,7 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) DPRINTK("bad cmd address\n"); return -EFAULT; } - // save user's chanlist pointer so it can be restored later + /* save user's chanlist pointer so it can be restored later */ chanlist_saver = user_cmd.chanlist; if (user_cmd.subdev >= dev->n_subdevices) { @@ -1160,8 +1162,7 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) /* load channel/gain list */ if (user_cmd.chanlist) { chanlist = - kmalloc(user_cmd.chanlist_len * sizeof(int), - GFP_KERNEL); + kmalloc(user_cmd.chanlist_len * sizeof(int), GFP_KERNEL); if (!chanlist) { DPRINTK("allocation failed\n"); ret = -ENOMEM; @@ -1169,15 +1170,15 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) } if (copy_from_user(chanlist, user_cmd.chanlist, - user_cmd.chanlist_len * sizeof(int))) { + user_cmd.chanlist_len * sizeof(int))) { DPRINTK("fault reading chanlist\n"); ret = -EFAULT; goto cleanup; } /* make sure each element in channel/gain list is valid */ - if ((ret = check_chanlist(s, user_cmd.chanlist_len, - chanlist)) < 0) { + ret = check_chanlist(s, user_cmd.chanlist_len, chanlist); + if (ret < 0) { DPRINTK("bad chanlist\n"); goto cleanup; } @@ -1187,7 +1188,7 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) ret = s->do_cmdtest(dev, s, &user_cmd); - // restore chanlist pointer before copying back + /* restore chanlist pointer before copying back */ user_cmd.chanlist = chanlist_saver; if (copy_to_user(arg, &user_cmd, sizeof(comedi_cmd))) { @@ -1195,9 +1196,8 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) ret = -EFAULT; goto cleanup; } - cleanup: - if (chanlist) - kfree(chanlist); +cleanup: + kfree(chanlist); return ret; } @@ -1217,7 +1217,7 @@ static int do_cmdtest_ioctl(comedi_device * dev, void *arg, void *file) */ -static int do_lock_ioctl(comedi_device * dev, unsigned int arg, void *file) +static int do_lock_ioctl(comedi_device *dev, unsigned int arg, void *file) { int ret = 0; unsigned long flags; @@ -1228,11 +1228,10 @@ static int do_lock_ioctl(comedi_device * dev, unsigned int arg, void *file) s = dev->subdevices + arg; comedi_spin_lock_irqsave(&s->spin_lock, flags); - if (s->busy || s->lock) { + if (s->busy || s->lock) ret = -EBUSY; - } else { + else s->lock = file; - } comedi_spin_unlock_irqrestore(&s->spin_lock, flags); if (ret < 0) @@ -1262,7 +1261,7 @@ static int do_lock_ioctl(comedi_device * dev, unsigned int arg, void *file) This function isn't protected by the semaphore, since we already own the lock. */ -static int do_unlock_ioctl(comedi_device * dev, unsigned int arg, void *file) +static int do_unlock_ioctl(comedi_device *dev, unsigned int arg, void *file) { comedi_subdevice *s; @@ -1302,7 +1301,7 @@ static int do_unlock_ioctl(comedi_device * dev, unsigned int arg, void *file) nothing */ -static int do_cancel_ioctl(comedi_device * dev, unsigned int arg, void *file) +static int do_cancel_ioctl(comedi_device *dev, unsigned int arg, void *file) { comedi_subdevice *s; @@ -1338,7 +1337,7 @@ static int do_cancel_ioctl(comedi_device * dev, unsigned int arg, void *file) nothing */ -static int do_poll_ioctl(comedi_device * dev, unsigned int arg, void *file) +static int do_poll_ioctl(comedi_device *dev, unsigned int arg, void *file) { comedi_subdevice *s; @@ -1361,7 +1360,7 @@ static int do_poll_ioctl(comedi_device * dev, unsigned int arg, void *file) return -EINVAL; } -static int do_cancel(comedi_device * dev, comedi_subdevice * s) +static int do_cancel(comedi_device *dev, comedi_subdevice *s) { int ret = 0; @@ -1387,13 +1386,14 @@ void comedi_unmap(struct vm_area_struct *area) } static struct vm_operations_struct comedi_vm_ops = { - close:comedi_unmap, + .close = comedi_unmap, }; static int comedi_mmap(struct file *file, struct vm_area_struct *vma) { const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; comedi_async *async = NULL; unsigned long start = vma->vm_start; @@ -1409,11 +1409,11 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma) retval = -ENODEV; goto done; } - if (vma->vm_flags & VM_WRITE) { + if (vma->vm_flags & VM_WRITE) s = comedi_get_write_subdevice(dev_file_info); - } else { + else s = comedi_get_read_subdevice(dev_file_info); - } + if (s == NULL) { retval = -EINVAL; goto done; @@ -1443,9 +1443,10 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma) n_pages = size >> PAGE_SHIFT; for (i = 0; i < n_pages; ++i) { if (remap_pfn_range(vma, start, - page_to_pfn(virt_to_page(async-> - buf_page_list[i].virt_addr)), - PAGE_SIZE, PAGE_SHARED)) { + page_to_pfn(virt_to_page(async-> + buf_page_list[i]. + virt_addr)), + PAGE_SIZE, PAGE_SHARED)) { retval = -EAGAIN; goto done; } @@ -1458,16 +1459,17 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma) async->mmap_count++; retval = 0; - done: +done: mutex_unlock(&dev->mutex); return retval; } -static unsigned int comedi_poll(struct file *file, poll_table * wait) +static unsigned int comedi_poll(struct file *file, poll_table *wait) { unsigned int mask = 0; const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; comedi_subdevice *read_subdev; comedi_subdevice *write_subdev; @@ -1484,21 +1486,22 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait) if (read_subdev) { poll_wait(file, &read_subdev->async->wait_head, wait); if (!read_subdev->busy - || comedi_buf_read_n_available(read_subdev->async) > 0 - || !(comedi_get_subdevice_runflags(read_subdev) & - SRF_RUNNING)) { + || comedi_buf_read_n_available(read_subdev->async) > 0 + || !(comedi_get_subdevice_runflags(read_subdev) & + SRF_RUNNING)) { mask |= POLLIN | POLLRDNORM; } } write_subdev = comedi_get_write_subdevice(dev_file_info); if (write_subdev) { poll_wait(file, &write_subdev->async->wait_head, wait); - comedi_buf_write_alloc(write_subdev->async, write_subdev->async->prealloc_bufsz); + comedi_buf_write_alloc(write_subdev->async, + write_subdev->async->prealloc_bufsz); if (!write_subdev->busy - || !(comedi_get_subdevice_runflags(write_subdev) & - SRF_RUNNING) - || comedi_buf_write_n_allocated(write_subdev->async) >= - bytes_per_sample(write_subdev->async->subdevice)) { + || !(comedi_get_subdevice_runflags(write_subdev) & + SRF_RUNNING) + || comedi_buf_write_n_allocated(write_subdev->async) >= + bytes_per_sample(write_subdev->async->subdevice)) { mask |= POLLOUT | POLLWRNORM; } } @@ -1508,14 +1511,15 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait) } static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes, - loff_t * offset) + loff_t *offset) { comedi_subdevice *s; comedi_async *async; int n, m, count = 0, retval = 0; DECLARE_WAITQUEUE(wait, current); const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; if (!dev->attached) { @@ -1550,20 +1554,18 @@ static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes, n = nbytes; m = n; - if (async->buf_write_ptr + m > async->prealloc_bufsz) { + if (async->buf_write_ptr + m > async->prealloc_bufsz) m = async->prealloc_bufsz - async->buf_write_ptr; - } comedi_buf_write_alloc(async, async->prealloc_bufsz); - if (m > comedi_buf_write_n_allocated(async)) { + if (m > comedi_buf_write_n_allocated(async)) m = comedi_buf_write_n_allocated(async); - } if (m < n) n = m; if (n == 0) { if (!(comedi_get_subdevice_runflags(s) & SRF_RUNNING)) { if (comedi_get_subdevice_runflags(s) & - SRF_ERROR) { + SRF_ERROR) { retval = -EPIPE; } else { retval = 0; @@ -1580,9 +1582,8 @@ static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes, break; } schedule(); - if (!s->busy) { + if (!s->busy) break; - } if (s->busy != file) { retval = -EACCES; break; @@ -1591,7 +1592,7 @@ static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes, } m = copy_from_user(async->prealloc_buf + async->buf_write_ptr, - buf, n); + buf, n); if (m) { n -= m; retval = -EFAULT; @@ -1608,18 +1609,19 @@ static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes, remove_wait_queue(&async->wait_head, &wait); done: - return (count ? count : retval); + return count ? count : retval; } static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, - loff_t * offset) + loff_t *offset) { comedi_subdevice *s; comedi_async *async; int n, m, count = 0, retval = 0; DECLARE_WAITQUEUE(wait, current); const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; if (!dev->attached) { @@ -1654,11 +1656,10 @@ static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, n = nbytes; m = comedi_buf_read_n_available(async); -//printk("%d available\n",m); - if (async->buf_read_ptr + m > async->prealloc_bufsz) { + /* printk("%d available\n",m); */ + if (async->buf_read_ptr + m > async->prealloc_bufsz) m = async->prealloc_bufsz - async->buf_read_ptr; - } -//printk("%d contiguous\n",m); + /* printk("%d contiguous\n",m); */ if (m < n) n = m; @@ -1666,7 +1667,7 @@ static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, if (!(comedi_get_subdevice_runflags(s) & SRF_RUNNING)) { do_become_nonbusy(dev, s); if (comedi_get_subdevice_runflags(s) & - SRF_ERROR) { + SRF_ERROR) { retval = -EPIPE; } else { retval = 0; @@ -1693,7 +1694,7 @@ static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, continue; } m = copy_to_user(buf, async->prealloc_buf + - async->buf_read_ptr, n); + async->buf_read_ptr, n); if (m) { n -= m; retval = -EFAULT; @@ -1709,20 +1710,20 @@ static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, break; /* makes device work like a pipe */ } if (!(comedi_get_subdevice_runflags(s) & (SRF_ERROR | SRF_RUNNING)) && - async->buf_read_count - async->buf_write_count == 0) { + async->buf_read_count - async->buf_write_count == 0) { do_become_nonbusy(dev, s); } set_current_state(TASK_RUNNING); remove_wait_queue(&async->wait_head, &wait); done: - return (count ? count : retval); + return count ? count : retval; } /* This function restores a subdevice to an idle state. */ -void do_become_nonbusy(comedi_device * dev, comedi_subdevice * s) +void do_become_nonbusy(comedi_device *dev, comedi_subdevice *s) { comedi_async *async = s->async; @@ -1737,7 +1738,8 @@ void do_become_nonbusy(comedi_device * dev, comedi_subdevice * s) comedi_reset_async_buf(async); async->inttrig = NULL; } else { - printk("BUG: (?) do_become_nonbusy called with async=0\n"); + printk(KERN_ERR + "BUG: (?) do_become_nonbusy called with async=0\n"); } s->busy = NULL; @@ -1747,7 +1749,8 @@ static int comedi_open(struct inode *inode, struct file *file) { char mod[32]; const unsigned minor = iminor(inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; if (dev == NULL) { DPRINTK("invalid minor number\n"); @@ -1805,9 +1808,8 @@ ok: } } - if (dev->attached && dev->use_count == 0 && dev->open) { + if (dev->attached && dev->use_count == 0 && dev->open) dev->open(dev); - } dev->use_count++; @@ -1819,7 +1821,8 @@ ok: static int comedi_close(struct inode *inode, struct file *file) { const unsigned minor = iminor(inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); comedi_device *dev = dev_file_info->device; comedi_subdevice *s = NULL; int i; @@ -1830,30 +1833,25 @@ static int comedi_close(struct inode *inode, struct file *file) for (i = 0; i < dev->n_subdevices; i++) { s = dev->subdevices + i; - if (s->busy == file) { + if (s->busy == file) do_cancel(dev, s); - } - if (s->lock == file) { + if (s->lock == file) s->lock = NULL; - } } } - if (dev->attached && dev->use_count == 1 && dev->close) { + if (dev->attached && dev->use_count == 1 && dev->close) dev->close(dev); - } module_put(THIS_MODULE); - if (dev->attached) { + if (dev->attached) module_put(dev->driver->module); - } dev->use_count--; mutex_unlock(&dev->mutex); - if (file->f_flags & FASYNC) { + if (file->f_flags & FASYNC) comedi_fasync(-1, file, 0); - } return 0; } @@ -1861,40 +1859,42 @@ static int comedi_close(struct inode *inode, struct file *file) static int comedi_fasync(int fd, struct file *file, int on) { const unsigned minor = iminor(file->f_dentry->d_inode); - struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(minor); + struct comedi_device_file_info *dev_file_info = + comedi_get_device_file_info(minor); + comedi_device *dev = dev_file_info->device; return fasync_helper(fd, file, on, &dev->async_queue); } const struct file_operations comedi_fops = { - owner:THIS_MODULE, + .owner = THIS_MODULE, #ifdef HAVE_UNLOCKED_IOCTL - unlocked_ioctl:comedi_unlocked_ioctl, + .unlocked_ioctl = comedi_unlocked_ioctl, #else - ioctl:comedi_ioctl, + .ioctl = comedi_ioctl, #endif #ifdef HAVE_COMPAT_IOCTL - compat_ioctl:comedi_compat_ioctl, + .compat_ioctl = comedi_compat_ioctl, #endif - open:comedi_open, - release:comedi_close, - read:comedi_read, - write:comedi_write, - mmap:comedi_mmap, - poll:comedi_poll, - fasync:comedi_fasync, + .open = comedi_open, + .release = comedi_close, + .read = comedi_read, + .write = comedi_write, + .mmap = comedi_mmap, + .poll = comedi_poll, + .fasync = comedi_fasync, }; -struct class *comedi_class = NULL; +struct class *comedi_class; static struct cdev comedi_cdev; static void comedi_cleanup_legacy_minors(void) { unsigned i; - for (i = 0; i < COMEDI_NUM_LEGACY_MINORS; i++) { + + for (i = 0; i < COMEDI_NUM_LEGACY_MINORS; i++) comedi_free_board_minor(i); - } } static int __init comedi_init(void) @@ -1902,13 +1902,14 @@ static int __init comedi_init(void) int i; int retval; - printk("comedi: version " COMEDI_RELEASE - " - http://www.comedi.org\n"); + printk(KERN_INFO "comedi: version " COMEDI_RELEASE + " - http://www.comedi.org\n"); - memset(comedi_file_info_table, 0, sizeof(struct comedi_device_file_info*) * COMEDI_NUM_MINORS); + memset(comedi_file_info_table, 0, + sizeof(struct comedi_device_file_info *) * COMEDI_NUM_MINORS); retval = register_chrdev_region(MKDEV(COMEDI_MAJOR, 0), - COMEDI_NUM_MINORS, "comedi"); + COMEDI_NUM_MINORS, "comedi"); if (retval) return -EIO; cdev_init(&comedi_cdev, &comedi_fops); @@ -1916,7 +1917,7 @@ static int __init comedi_init(void) kobject_set_name(&comedi_cdev.kobj, "comedi"); if (cdev_add(&comedi_cdev, MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS)) { unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), - COMEDI_NUM_MINORS); + COMEDI_NUM_MINORS); return -EIO; } comedi_class = class_create(THIS_MODULE, "comedi"); @@ -1924,23 +1925,22 @@ static int __init comedi_init(void) printk("comedi: failed to create class"); cdev_del(&comedi_cdev); unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), - COMEDI_NUM_MINORS); + COMEDI_NUM_MINORS); return PTR_ERR(comedi_class); } /* XXX requires /proc interface */ comedi_proc_init(); - // create devices files for legacy/manual use + /* create devices files for legacy/manual use */ for (i = 0; i < COMEDI_NUM_LEGACY_MINORS; i++) { int minor; minor = comedi_alloc_board_minor(NULL); - if(minor < 0) - { + if (minor < 0) { comedi_cleanup_legacy_minors(); cdev_del(&comedi_cdev); unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), - COMEDI_NUM_MINORS); + COMEDI_NUM_MINORS); return minor; } } @@ -1957,10 +1957,9 @@ static void __exit comedi_cleanup(void) int i; comedi_cleanup_legacy_minors(); - for(i = 0; i < COMEDI_NUM_MINORS; ++i) - { + for (i = 0; i < COMEDI_NUM_MINORS; ++i) BUG_ON(comedi_file_info_table[i]); - } + class_destroy(comedi_class); cdev_del(&comedi_cdev); @@ -1976,26 +1975,25 @@ static void __exit comedi_cleanup(void) module_init(comedi_init); module_exit(comedi_cleanup); -void comedi_error(const comedi_device * dev, const char *s) +void comedi_error(const comedi_device *dev, const char *s) { rt_printk("comedi%d: %s: %s\n", dev->minor, dev->driver->driver_name, - s); + s); } -void comedi_event(comedi_device * dev, comedi_subdevice * s) +void comedi_event(comedi_device *dev, comedi_subdevice *s) { comedi_async *async = s->async; unsigned runflags = 0; unsigned runflags_mask = 0; - //DPRINTK("comedi_event 0x%x\n",mask); + /* DPRINTK("comedi_event 0x%x\n",mask); */ if ((comedi_get_subdevice_runflags(s) & SRF_RUNNING) == 0) return; if (s->async-> - events & (COMEDI_CB_EOA | COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)) - { + events & (COMEDI_CB_EOA | COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)) { runflags_mask |= SRF_RUNNING; } /* remember if an error event has occured, so an error @@ -2014,20 +2012,21 @@ void comedi_event(comedi_device * dev, comedi_subdevice * s) if (dev->rt) { #ifdef CONFIG_COMEDI_RT - // pend wake up + /* pend wake up */ comedi_rt_pend_wakeup(&async->wait_head); #else - printk("BUG: comedi_event() code unreachable\n"); + printk + ("BUG: comedi_event() code unreachable\n"); #endif } else { wake_up_interruptible(&async->wait_head); if (s->subdev_flags & SDF_CMD_READ) { kill_fasync(&dev->async_queue, SIGIO, - POLL_IN); + POLL_IN); } if (s->subdev_flags & SDF_CMD_WRITE) { kill_fasync(&dev->async_queue, SIGIO, - POLL_OUT); + POLL_OUT); } } } else { @@ -2043,8 +2042,8 @@ void comedi_event(comedi_device * dev, comedi_subdevice * s) s->async->events = 0; } -void comedi_set_subdevice_runflags(comedi_subdevice * s, unsigned mask, - unsigned bits) +void comedi_set_subdevice_runflags(comedi_subdevice *s, unsigned mask, + unsigned bits) { unsigned long flags; @@ -2054,7 +2053,7 @@ void comedi_set_subdevice_runflags(comedi_subdevice * s, unsigned mask, comedi_spin_unlock_irqrestore(&s->spin_lock, flags); } -unsigned comedi_get_subdevice_runflags(comedi_subdevice * s) +unsigned comedi_get_subdevice_runflags(comedi_subdevice *s) { unsigned long flags; unsigned runflags; @@ -2065,7 +2064,7 @@ unsigned comedi_get_subdevice_runflags(comedi_subdevice * s) return runflags; } -static int is_device_busy(comedi_device * dev) +static int is_device_busy(comedi_device *dev) { comedi_subdevice *s; int i; @@ -2094,7 +2093,8 @@ void comedi_device_init(comedi_device *dev) void comedi_device_cleanup(comedi_device *dev) { - if(dev == NULL) return; + if (dev == NULL) + return; mutex_lock(&dev->mutex); comedi_device_detach(dev); mutex_unlock(&dev->mutex); @@ -2109,38 +2109,37 @@ int comedi_alloc_board_minor(struct device *hardware_device) unsigned i; info = kzalloc(sizeof(struct comedi_device_file_info), GFP_KERNEL); - if(info == NULL) return -ENOMEM; + if (info == NULL) + return -ENOMEM; info->device = kzalloc(sizeof(comedi_device), GFP_KERNEL); - if(info->device == NULL) - { + if (info->device == NULL) { kfree(info); return -ENOMEM; } comedi_device_init(info->device); comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags); - for(i = 0; i < COMEDI_NUM_BOARD_MINORS; ++i) - { - if(comedi_file_info_table[i] == NULL) - { + for (i = 0; i < COMEDI_NUM_BOARD_MINORS; ++i) { + if (comedi_file_info_table[i] == NULL) { comedi_file_info_table[i] = info; break; } } comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags); - if(i == COMEDI_NUM_BOARD_MINORS) - { + if (i == COMEDI_NUM_BOARD_MINORS) { comedi_device_cleanup(info->device); kfree(info->device); kfree(info); - rt_printk("comedi: error: ran out of minor numbers for board device files.\n"); + rt_printk + ("comedi: error: ran out of minor numbers for board device files.\n"); return -EBUSY; } info->device->minor = i; csdev = COMEDI_DEVICE_CREATE(comedi_class, NULL, - MKDEV(COMEDI_MAJOR, i), NULL, hardware_device, "comedi%i", i); - if(!IS_ERR(csdev)) { + MKDEV(COMEDI_MAJOR, i), NULL, + hardware_device, "comedi%i", i); + if (!IS_ERR(csdev)) info->device->class_dev = csdev; - } + return i; } @@ -2155,14 +2154,12 @@ void comedi_free_board_minor(unsigned minor) comedi_file_info_table[minor] = NULL; comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags); - if(info) - { + if (info) { comedi_device *dev = info->device; - if(dev) - { - if(dev->class_dev) - { - device_destroy(comedi_class, MKDEV(COMEDI_MAJOR, dev->minor)); + if (dev) { + if (dev->class_dev) { + device_destroy(comedi_class, + MKDEV(COMEDI_MAJOR, dev->minor)); } comedi_device_cleanup(dev); kfree(dev); @@ -2179,33 +2176,33 @@ int comedi_alloc_subdevice_minor(comedi_device *dev, comedi_subdevice *s) unsigned i; info = kmalloc(sizeof(struct comedi_device_file_info), GFP_KERNEL); - if(info == NULL) return -ENOMEM; + if (info == NULL) + return -ENOMEM; info->device = dev; info->read_subdevice = s; info->write_subdevice = s; comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags); - for(i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_BOARD_MINORS; ++i) - { - if(comedi_file_info_table[i] == NULL) - { + for (i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_BOARD_MINORS; ++i) { + if (comedi_file_info_table[i] == NULL) { comedi_file_info_table[i] = info; break; } } comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags); - if(i == COMEDI_NUM_MINORS) - { + if (i == COMEDI_NUM_MINORS) { kfree(info); - rt_printk("comedi: error: ran out of minor numbers for board device files.\n"); + rt_printk + ("comedi: error: ran out of minor numbers for board device files.\n"); return -EBUSY; } s->minor = i; csdev = COMEDI_DEVICE_CREATE(comedi_class, dev->class_dev, - MKDEV(COMEDI_MAJOR, i), NULL, NULL, "comedi%i_subd%i", dev->minor, (int)(s - dev->subdevices)); - if(!IS_ERR(csdev)) - { + MKDEV(COMEDI_MAJOR, i), NULL, NULL, + "comedi%i_subd%i", dev->minor, + (int)(s - dev->subdevices)); + if (!IS_ERR(csdev)) s->class_dev = csdev; - } + return i; } @@ -2214,8 +2211,10 @@ void comedi_free_subdevice_minor(comedi_subdevice *s) unsigned long flags; struct comedi_device_file_info *info; - if(s == NULL) return; - if(s->minor < 0) return; + if (s == NULL) + return; + if (s->minor < 0) + return; BUG_ON(s->minor >= COMEDI_NUM_MINORS); BUG_ON(s->minor < COMEDI_FIRST_SUBDEVICE_MINOR); @@ -2225,8 +2224,7 @@ void comedi_free_subdevice_minor(comedi_subdevice *s) comedi_file_info_table[s->minor] = NULL; comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags); - if(s->class_dev) - { + if (s->class_dev) { device_destroy(comedi_class, MKDEV(COMEDI_MAJOR, s->minor)); s->class_dev = NULL; } |