diff options
Diffstat (limited to 'drivers/staging/comedi/comedi_fops.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 280 |
1 files changed, 152 insertions, 128 deletions
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 640f65c6ef84..aaad76e0a76a 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -68,26 +68,33 @@ module_param(comedi_num_legacy_minors, int, 0444); static DEFINE_SPINLOCK(comedi_file_info_table_lock); static struct comedi_device_file_info - *comedi_file_info_table[COMEDI_NUM_MINORS]; +*comedi_file_info_table[COMEDI_NUM_MINORS]; -static int do_devconfig_ioctl(struct comedi_device *dev, struct comedi_devconfig *arg); +static int do_devconfig_ioctl(struct comedi_device *dev, + struct comedi_devconfig *arg); static int do_bufconfig_ioctl(struct comedi_device *dev, void *arg); -static int do_devinfo_ioctl(struct comedi_device *dev, struct comedi_devinfo *arg, - struct file *file); -static int do_subdinfo_ioctl(struct comedi_device *dev, struct comedi_subdinfo *arg, - void *file); -static int do_chaninfo_ioctl(struct comedi_device *dev, struct comedi_chaninfo *arg); +static int do_devinfo_ioctl(struct comedi_device *dev, + struct comedi_devinfo *arg, struct file *file); +static int do_subdinfo_ioctl(struct comedi_device *dev, + struct comedi_subdinfo *arg, void *file); +static int do_chaninfo_ioctl(struct comedi_device *dev, + struct comedi_chaninfo *arg); static int do_bufinfo_ioctl(struct comedi_device *dev, void *arg); static int do_cmd_ioctl(struct comedi_device *dev, void *arg, void *file); -static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, void *file); -static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, void *file); -static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, void *file); +static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, + void *file); +static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, + void *file); +static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, + void *file); static int do_cmdtest_ioctl(struct comedi_device *dev, void *arg, void *file); static int do_insnlist_ioctl(struct comedi_device *dev, void *arg, void *file); static int do_insn_ioctl(struct comedi_device *dev, void *arg, void *file); -static int do_poll_ioctl(struct comedi_device *dev, unsigned int subd, void *file); +static int do_poll_ioctl(struct comedi_device *dev, unsigned int subd, + void *file); -extern void do_become_nonbusy(struct comedi_device *dev, struct comedi_subdevice *s); +extern void do_become_nonbusy(struct comedi_device *dev, + struct comedi_subdevice *s); static int do_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static int comedi_fasync(int fd, struct file *file, int on); @@ -202,7 +209,8 @@ done: writes: none */ -static int do_devconfig_ioctl(struct comedi_device *dev, struct comedi_devconfig *arg) +static int do_devconfig_ioctl(struct comedi_device *dev, + struct comedi_devconfig *arg) { struct comedi_devconfig it; int ret; @@ -342,8 +350,8 @@ copyback: devinfo structure */ -static int do_devinfo_ioctl(struct comedi_device *dev, struct comedi_devinfo *arg, - struct file *file) +static int do_devinfo_ioctl(struct comedi_device *dev, + struct comedi_devinfo *arg, struct file *file) { struct comedi_devinfo devinfo; const unsigned minor = iminor(file->f_dentry->d_inode); @@ -392,14 +400,16 @@ static int do_devinfo_ioctl(struct comedi_device *dev, struct comedi_devinfo *ar array of subdevice info structures at arg */ -static int do_subdinfo_ioctl(struct comedi_device *dev, struct comedi_subdinfo *arg, - void *file) +static int do_subdinfo_ioctl(struct comedi_device *dev, + struct comedi_subdinfo *arg, void *file) { int ret, i; struct comedi_subdinfo *tmp, *us; struct comedi_subdevice *s; - tmp = kcalloc(dev->n_subdevices, sizeof(struct comedi_subdinfo), GFP_KERNEL); + tmp = + kcalloc(dev->n_subdevices, sizeof(struct comedi_subdinfo), + GFP_KERNEL); if (!tmp) return -ENOMEM; @@ -472,7 +482,8 @@ static int do_subdinfo_ioctl(struct comedi_device *dev, struct comedi_subdinfo * arrays at elements of chaninfo structure */ -static int do_chaninfo_ioctl(struct comedi_device *dev, struct comedi_chaninfo *arg) +static int do_chaninfo_ioctl(struct comedi_device *dev, + struct comedi_chaninfo *arg) { struct comedi_subdevice *s; struct comedi_chaninfo it; @@ -514,7 +525,7 @@ static int do_chaninfo_ioctl(struct comedi_device *dev, struct comedi_chaninfo * } #if 0 if (copy_to_user(it.rangelist, s->range_type_list, - s->n_chan*sizeof(unsigned int))) + s->n_chan * sizeof(unsigned int))) return -EFAULT; #endif } @@ -589,8 +600,8 @@ copyback: return 0; } -static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data, - void *file); +static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn, + unsigned int *data, void *file); /* * COMEDI_INSNLIST * synchronous instructions @@ -626,7 +637,8 @@ static int do_insnlist_ioctl(struct comedi_device *dev, void *arg, void *file) goto error; } - insns = kmalloc(sizeof(struct comedi_insn) * insnlist.n_insns, GFP_KERNEL); + insns = + kmalloc(sizeof(struct comedi_insn) * insnlist.n_insns, GFP_KERNEL); if (!insns) { DPRINTK("kmalloc failed\n"); ret = -ENOMEM; @@ -678,7 +690,8 @@ error: return i; } -static int check_insn_config_length(struct comedi_insn *insn, unsigned int *data) +static int check_insn_config_length(struct comedi_insn *insn, + unsigned int *data) { if (insn->n < 1) return -EINVAL; @@ -725,22 +738,22 @@ static int check_insn_config_length(struct comedi_insn *insn, unsigned int *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: 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); + "%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(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data, - void *file) +static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn, + unsigned int *data, void *file) { struct comedi_subdevice *s; int ret = 0; @@ -920,7 +933,8 @@ static int do_insn_ioctl(struct comedi_device *dev, void *arg, void *file) if (insn.n > MAX_SAMPLES) insn.n = MAX_SAMPLES; if (insn.insn & INSN_MASK_WRITE) { - if (copy_from_user(data, insn.data, insn.n * sizeof(unsigned int))) { + if (copy_from_user + (data, insn.data, insn.n * sizeof(unsigned int))) { ret = -EFAULT; goto error; } @@ -929,7 +943,8 @@ static int do_insn_ioctl(struct comedi_device *dev, void *arg, void *file) if (ret < 0) goto error; if (insn.insn & INSN_MASK_READ) { - if (copy_to_user(insn.data, data, insn.n * sizeof(unsigned int))) { + if (copy_to_user + (insn.data, data, insn.n * sizeof(unsigned int))) { ret = -EFAULT; goto error; } @@ -1202,7 +1217,8 @@ cleanup: */ -static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, void *file) +static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, + void *file) { int ret = 0; unsigned long flags; @@ -1246,7 +1262,8 @@ static int do_lock_ioctl(struct 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(struct comedi_device *dev, unsigned int arg, void *file) +static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, + void *file) { struct comedi_subdevice *s; @@ -1286,7 +1303,8 @@ static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, void *fi nothing */ -static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, void *file) +static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, + void *file) { struct comedi_subdevice *s; @@ -1322,7 +1340,8 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, void *fi nothing */ -static int do_poll_ioctl(struct comedi_device *dev, unsigned int arg, void *file) +static int do_poll_ioctl(struct comedi_device *dev, unsigned int arg, + void *file) { struct comedi_subdevice *s; @@ -1371,7 +1390,7 @@ 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) @@ -1428,10 +1447,10 @@ 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; } @@ -1449,7 +1468,7 @@ done: 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); @@ -1496,7 +1515,7 @@ 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) { struct comedi_subdevice *s; struct comedi_async *async; @@ -1598,7 +1617,7 @@ done: } static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes, - loff_t *offset) + loff_t * offset) { struct comedi_subdevice *s; struct comedi_async *async; @@ -1729,7 +1748,8 @@ static int comedi_open(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 *dev = dev_file_info ? dev_file_info->device : NULL; + struct comedi_device *dev = + dev_file_info ? dev_file_info->device : NULL; if (dev == NULL) { DPRINTK("invalid minor number\n"); @@ -1846,22 +1866,22 @@ static int comedi_fasync(int fd, struct file *file, int on) } 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; @@ -1952,7 +1972,6 @@ static void __exit comedi_cleanup(void) for (i = 0; i < COMEDI_NUM_MINORS; ++i) BUG_ON(comedi_file_info_table[i]); - class_destroy(comedi_class); cdev_del(&comedi_cdev); unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS); @@ -1981,8 +2000,9 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s) if ((comedi_get_subdevice_runflags(s) & SRF_RUNNING) == 0) return; - if (s->async-> - events & (COMEDI_CB_EOA | COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)) { + if (s-> + async->events & (COMEDI_CB_EOA | COMEDI_CB_ERROR | + COMEDI_CB_OVERFLOW)) { runflags_mask |= SRF_RUNNING; } /* remember if an error event has occured, so an error @@ -2000,12 +2020,10 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s) if (comedi_get_subdevice_runflags(s) & SRF_USER) { wake_up_interruptible(&async->wait_head); if (s->subdev_flags & SDF_CMD_READ) { - kill_fasync(&dev->async_queue, SIGIO, - POLL_IN); + kill_fasync(&dev->async_queue, SIGIO, POLL_IN); } if (s->subdev_flags & SDF_CMD_WRITE) { - kill_fasync(&dev->async_queue, SIGIO, - POLL_OUT); + kill_fasync(&dev->async_queue, SIGIO, POLL_OUT); } } else { if (async->cb_func) @@ -2103,7 +2121,8 @@ int comedi_alloc_board_minor(struct device *hardware_device) comedi_device_cleanup(info->device); kfree(info->device); kfree(info); - printk(KERN_ERR "comedi: error: ran out of minor numbers for board device files.\n"); + printk(KERN_ERR + "comedi: error: ran out of minor numbers for board device files.\n"); return -EBUSY; } info->device->minor = i; @@ -2115,29 +2134,33 @@ int comedi_alloc_board_minor(struct device *hardware_device) dev_set_drvdata(csdev, info); retval = device_create_file(csdev, &dev_attr_max_read_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_max_read_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_max_read_buffer_kb.attr.name); comedi_free_board_minor(i); return retval; } retval = device_create_file(csdev, &dev_attr_read_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_read_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_read_buffer_kb.attr.name); comedi_free_board_minor(i); return retval; } retval = device_create_file(csdev, &dev_attr_max_write_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_max_write_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_max_write_buffer_kb.attr.name); comedi_free_board_minor(i); return retval; } retval = device_create_file(csdev, &dev_attr_write_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_write_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_write_buffer_kb.attr.name); comedi_free_board_minor(i); return retval; } @@ -2194,7 +2217,8 @@ int comedi_alloc_subdevice_minor(struct comedi_device *dev, spin_unlock_irqrestore(&comedi_file_info_table_lock, flags); if (i == COMEDI_NUM_MINORS) { kfree(info); - printk(KERN_ERR "comedi: error: ran out of minor numbers for board device files.\n"); + printk(KERN_ERR + "comedi: error: ran out of minor numbers for board device files.\n"); return -EBUSY; } s->minor = i; @@ -2207,29 +2231,33 @@ int comedi_alloc_subdevice_minor(struct comedi_device *dev, dev_set_drvdata(csdev, info); retval = device_create_file(csdev, &dev_attr_max_read_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_max_read_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_max_read_buffer_kb.attr.name); comedi_free_subdevice_minor(s); return retval; } retval = device_create_file(csdev, &dev_attr_read_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_read_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_read_buffer_kb.attr.name); comedi_free_subdevice_minor(s); return retval; } retval = device_create_file(csdev, &dev_attr_max_write_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_max_write_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_max_write_buffer_kb.attr.name); comedi_free_subdevice_minor(s); return retval; } retval = device_create_file(csdev, &dev_attr_write_buffer_kb); if (retval) { - printk(KERN_ERR "comedi: failed to create sysfs attribute file \"%s\".\n", - dev_attr_write_buffer_kb.attr.name); + printk(KERN_ERR + "comedi: failed to create sysfs attribute file \"%s\".\n", + dev_attr_write_buffer_kb.attr.name); comedi_free_subdevice_minor(s); return retval; } @@ -2295,7 +2323,7 @@ static int resize_async_buffer(struct comedi_device *dev, return -EINVAL; /* make sure buffer is an integral number of pages - * (we round up) */ + * (we round up) */ new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK; retval = comedi_buf_alloc(dev, s, new_size); @@ -2309,7 +2337,7 @@ static int resize_async_buffer(struct comedi_device *dev, } DPRINTK("comedi%i subd %d buffer resized to %i bytes\n", - dev->minor, s - dev->subdevices, async->prealloc_bufsz); + dev->minor, (int)(s - dev->subdevices), async->prealloc_bufsz); return 0; } @@ -2324,16 +2352,16 @@ static ssize_t show_max_read_buffer_kb(struct device *dev, struct comedi_device_file_info *info = dev_get_drvdata(dev); unsigned max_buffer_size_kb = 0; struct comedi_subdevice *const read_subdevice = - comedi_get_read_subdevice(info); + comedi_get_read_subdevice(info); mutex_lock(&info->device->mutex); if (read_subdevice && (read_subdevice->subdev_flags & SDF_CMD_READ) && read_subdevice->async) { max_buffer_size_kb = read_subdevice->async->max_bufsize / - bytes_per_kibi; + bytes_per_kibi; } - retval = snprintf(buf, PAGE_SIZE, "%i\n", max_buffer_size_kb); + retval = snprintf(buf, PAGE_SIZE, "%i\n", max_buffer_size_kb); mutex_unlock(&info->device->mutex); return retval; @@ -2347,14 +2375,14 @@ static ssize_t store_max_read_buffer_kb(struct device *dev, unsigned long new_max_size_kb; uint64_t new_max_size; struct comedi_subdevice *const read_subdevice = - comedi_get_read_subdevice(info); + comedi_get_read_subdevice(info); if (strict_strtoul(buf, 10, &new_max_size_kb)) return -EINVAL; - if (new_max_size_kb != (uint32_t)new_max_size_kb) + if (new_max_size_kb != (uint32_t) new_max_size_kb) return -EINVAL; - new_max_size = ((uint64_t)new_max_size_kb) * bytes_per_kibi; - if (new_max_size != (uint32_t)new_max_size) + new_max_size = ((uint64_t) new_max_size_kb) * bytes_per_kibi; + if (new_max_size != (uint32_t) new_max_size) return -EINVAL; mutex_lock(&info->device->mutex); @@ -2372,9 +2400,8 @@ static ssize_t store_max_read_buffer_kb(struct device *dev, static struct device_attribute dev_attr_max_read_buffer_kb = { .attr = { - .name = "max_read_buffer_kb", - .mode = S_IRUGO | S_IWUSR - }, + .name = "max_read_buffer_kb", + .mode = S_IRUGO | S_IWUSR}, .show = &show_max_read_buffer_kb, .store = &store_max_read_buffer_kb }; @@ -2386,16 +2413,16 @@ static ssize_t show_read_buffer_kb(struct device *dev, struct comedi_device_file_info *info = dev_get_drvdata(dev); unsigned buffer_size_kb = 0; struct comedi_subdevice *const read_subdevice = - comedi_get_read_subdevice(info); + comedi_get_read_subdevice(info); mutex_lock(&info->device->mutex); if (read_subdevice && - (read_subdevice->subdev_flags & SDF_CMD_READ) && - read_subdevice->async) { + (read_subdevice->subdev_flags & SDF_CMD_READ) && + read_subdevice->async) { buffer_size_kb = read_subdevice->async->prealloc_bufsz / - bytes_per_kibi; + bytes_per_kibi; } - retval = snprintf(buf, PAGE_SIZE, "%i\n", buffer_size_kb); + retval = snprintf(buf, PAGE_SIZE, "%i\n", buffer_size_kb); mutex_unlock(&info->device->mutex); return retval; @@ -2410,14 +2437,14 @@ static ssize_t store_read_buffer_kb(struct device *dev, uint64_t new_size; int retval; struct comedi_subdevice *const read_subdevice = - comedi_get_read_subdevice(info); + comedi_get_read_subdevice(info); if (strict_strtoul(buf, 10, &new_size_kb)) return -EINVAL; - if (new_size_kb != (uint32_t)new_size_kb) + if (new_size_kb != (uint32_t) new_size_kb) return -EINVAL; - new_size = ((uint64_t)new_size_kb) * bytes_per_kibi; - if (new_size != (uint32_t)new_size) + new_size = ((uint64_t) new_size_kb) * bytes_per_kibi; + if (new_size != (uint32_t) new_size) return -EINVAL; mutex_lock(&info->device->mutex); @@ -2438,9 +2465,8 @@ static ssize_t store_read_buffer_kb(struct device *dev, static struct device_attribute dev_attr_read_buffer_kb = { .attr = { - .name = "read_buffer_kb", - .mode = S_IRUGO | S_IWUSR | S_IWGRP - }, + .name = "read_buffer_kb", + .mode = S_IRUGO | S_IWUSR | S_IWGRP}, .show = &show_read_buffer_kb, .store = &store_read_buffer_kb }; @@ -2453,16 +2479,16 @@ static ssize_t show_max_write_buffer_kb(struct device *dev, struct comedi_device_file_info *info = dev_get_drvdata(dev); unsigned max_buffer_size_kb = 0; struct comedi_subdevice *const write_subdevice = - comedi_get_write_subdevice(info); + comedi_get_write_subdevice(info); mutex_lock(&info->device->mutex); if (write_subdevice && (write_subdevice->subdev_flags & SDF_CMD_WRITE) && write_subdevice->async) { max_buffer_size_kb = write_subdevice->async->max_bufsize / - bytes_per_kibi; + bytes_per_kibi; } - retval = snprintf(buf, PAGE_SIZE, "%i\n", max_buffer_size_kb); + retval = snprintf(buf, PAGE_SIZE, "%i\n", max_buffer_size_kb); mutex_unlock(&info->device->mutex); return retval; @@ -2476,14 +2502,14 @@ static ssize_t store_max_write_buffer_kb(struct device *dev, unsigned long new_max_size_kb; uint64_t new_max_size; struct comedi_subdevice *const write_subdevice = - comedi_get_write_subdevice(info); + comedi_get_write_subdevice(info); if (strict_strtoul(buf, 10, &new_max_size_kb)) return -EINVAL; - if (new_max_size_kb != (uint32_t)new_max_size_kb) + if (new_max_size_kb != (uint32_t) new_max_size_kb) return -EINVAL; - new_max_size = ((uint64_t)new_max_size_kb) * bytes_per_kibi; - if (new_max_size != (uint32_t)new_max_size) + new_max_size = ((uint64_t) new_max_size_kb) * bytes_per_kibi; + if (new_max_size != (uint32_t) new_max_size) return -EINVAL; mutex_lock(&info->device->mutex); @@ -2501,9 +2527,8 @@ static ssize_t store_max_write_buffer_kb(struct device *dev, static struct device_attribute dev_attr_max_write_buffer_kb = { .attr = { - .name = "max_write_buffer_kb", - .mode = S_IRUGO | S_IWUSR - }, + .name = "max_write_buffer_kb", + .mode = S_IRUGO | S_IWUSR}, .show = &show_max_write_buffer_kb, .store = &store_max_write_buffer_kb }; @@ -2515,16 +2540,16 @@ static ssize_t show_write_buffer_kb(struct device *dev, struct comedi_device_file_info *info = dev_get_drvdata(dev); unsigned buffer_size_kb = 0; struct comedi_subdevice *const write_subdevice = - comedi_get_write_subdevice(info); + comedi_get_write_subdevice(info); mutex_lock(&info->device->mutex); if (write_subdevice && (write_subdevice->subdev_flags & SDF_CMD_WRITE) && write_subdevice->async) { buffer_size_kb = write_subdevice->async->prealloc_bufsz / - bytes_per_kibi; + bytes_per_kibi; } - retval = snprintf(buf, PAGE_SIZE, "%i\n", buffer_size_kb); + retval = snprintf(buf, PAGE_SIZE, "%i\n", buffer_size_kb); mutex_unlock(&info->device->mutex); return retval; @@ -2539,14 +2564,14 @@ static ssize_t store_write_buffer_kb(struct device *dev, uint64_t new_size; int retval; struct comedi_subdevice *const write_subdevice = - comedi_get_write_subdevice(info); + comedi_get_write_subdevice(info); if (strict_strtoul(buf, 10, &new_size_kb)) return -EINVAL; - if (new_size_kb != (uint32_t)new_size_kb) + if (new_size_kb != (uint32_t) new_size_kb) return -EINVAL; - new_size = ((uint64_t)new_size_kb) * bytes_per_kibi; - if (new_size != (uint32_t)new_size) + new_size = ((uint64_t) new_size_kb) * bytes_per_kibi; + if (new_size != (uint32_t) new_size) return -EINVAL; mutex_lock(&info->device->mutex); @@ -2557,7 +2582,7 @@ static ssize_t store_write_buffer_kb(struct device *dev, return -EINVAL; } retval = resize_async_buffer(info->device, write_subdevice, - write_subdevice->async, new_size); + write_subdevice->async, new_size); mutex_unlock(&info->device->mutex); if (retval < 0) @@ -2567,9 +2592,8 @@ static ssize_t store_write_buffer_kb(struct device *dev, static struct device_attribute dev_attr_write_buffer_kb = { .attr = { - .name = "write_buffer_kb", - .mode = S_IRUGO | S_IWUSR | S_IWGRP - }, + .name = "write_buffer_kb", + .mode = S_IRUGO | S_IWUSR | S_IWGRP}, .show = &show_write_buffer_kb, .store = &store_write_buffer_kb }; 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