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staging: comedi: comedi_fops: rename comedi_{read,write}_subdevice()

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The 'get' usually implies increasing a reference count of an object.
These function return a pointer but do not do any reference counting.
For aesthetic reasons, rename the functions to better represent what
they do.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-12-19 15:38:53 -07:00 • committed by Greg Kroah-Hartman
commit 7d8a25674f
1 changed files with 18 additions and 20 deletions
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38
drivers/staging/comedi/comedi_fops.c
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@ -118,7 +118,7 @@ struct comedi_device *comedi_dev_from_minor(unsigned minor)
EXPORT_SYMBOL_GPL(comedi_dev_from_minor);
static struct comedi_subdevice *
comedi_get_read_subdevice(const struct comedi_file_info *info)
comedi_read_subdevice(const struct comedi_file_info *info)
{
if (info->read_subdevice)
return info->read_subdevice;
@ -128,7 +128,7 @@ comedi_get_read_subdevice(const struct comedi_file_info *info)
}
static struct comedi_subdevice *
comedi_get_write_subdevice(const struct comedi_file_info *info)
comedi_write_subdevice(const struct comedi_file_info *info)
{
if (info->write_subdevice)
return info->write_subdevice;
@ -183,7 +183,7 @@ static ssize_t show_max_read_buffer_kb(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_read_subdevice(info);
struct comedi_subdevice *s = comedi_read_subdevice(info);
unsigned int size = 0;
mutex_lock(&info->device->mutex);
@ -199,7 +199,7 @@ static ssize_t store_max_read_buffer_kb(struct device *dev,
const char *buf, size_t count)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_read_subdevice(info);
struct comedi_subdevice *s = comedi_read_subdevice(info);
unsigned int size;
int err;
@ -224,7 +224,7 @@ static ssize_t show_read_buffer_kb(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_read_subdevice(info);
struct comedi_subdevice *s = comedi_read_subdevice(info);
unsigned int size = 0;
mutex_lock(&info->device->mutex);
@ -240,7 +240,7 @@ static ssize_t store_read_buffer_kb(struct device *dev,
const char *buf, size_t count)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_read_subdevice(info);
struct comedi_subdevice *s = comedi_read_subdevice(info);
unsigned int size;
int err;
@ -266,7 +266,7 @@ static ssize_t show_max_write_buffer_kb(struct device *dev,
char *buf)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_write_subdevice(info);
struct comedi_subdevice *s = comedi_write_subdevice(info);
unsigned int size = 0;
mutex_lock(&info->device->mutex);
@ -282,7 +282,7 @@ static ssize_t store_max_write_buffer_kb(struct device *dev,
const char *buf, size_t count)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_write_subdevice(info);
struct comedi_subdevice *s = comedi_write_subdevice(info);
unsigned int size;
int err;
@ -307,7 +307,7 @@ static ssize_t show_write_buffer_kb(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_write_subdevice(info);
struct comedi_subdevice *s = comedi_write_subdevice(info);
unsigned int size = 0;
mutex_lock(&info->device->mutex);
@ -323,7 +323,7 @@ static ssize_t store_write_buffer_kb(struct device *dev,
const char *buf, size_t count)
{
struct comedi_file_info *info = dev_get_drvdata(dev);
struct comedi_subdevice *s = comedi_get_write_subdevice(info);
struct comedi_subdevice *s = comedi_write_subdevice(info);
unsigned int size;
int err;
@ -583,10 +583,8 @@ static int do_devinfo_ioctl(struct comedi_device *dev,
struct comedi_devinfo devinfo;
const unsigned minor = iminor(file->f_dentry->d_inode);
struct comedi_file_info *info = comedi_file_info_from_minor(minor);
struct comedi_subdevice *read_subdev =
comedi_get_read_subdevice(info);
struct comedi_subdevice *write_subdev =
comedi_get_write_subdevice(info);
struct comedi_subdevice *read_subdev = comedi_read_subdevice(info);
struct comedi_subdevice *write_subdev = comedi_write_subdevice(info);
memset(&devinfo, 0, sizeof(devinfo));
@ -1766,9 +1764,9 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma)
goto done;
}
if (vma->vm_flags & VM_WRITE)
s = comedi_get_write_subdevice(info);
s = comedi_write_subdevice(info);
else
s = comedi_get_read_subdevice(info);
s = comedi_read_subdevice(info);
if (s == NULL) {
retval = -EINVAL;
@ -1843,7 +1841,7 @@ static unsigned int comedi_poll(struct file *file, poll_table *wait)
}
mask = 0;
read_subdev = comedi_get_read_subdevice(info);
read_subdev = comedi_read_subdevice(info);
if (read_subdev) {
poll_wait(file, &read_subdev->async->wait_head, wait);
if (!read_subdev->busy
@ -1853,7 +1851,7 @@ static unsigned int comedi_poll(struct file *file, poll_table *wait)
mask |= POLLIN | POLLRDNORM;
}
}
write_subdev = comedi_get_write_subdevice(info);
write_subdev = comedi_write_subdevice(info);
if (write_subdev) {
poll_wait(file, &write_subdev->async->wait_head, wait);
comedi_buf_write_alloc(write_subdev->async,
@ -1894,7 +1892,7 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
goto done;
}
s = comedi_get_write_subdevice(info);
s = comedi_write_subdevice(info);
if (s == NULL) {
retval = -EIO;
goto done;
@ -2004,7 +2002,7 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
goto done;
}
s = comedi_get_read_subdevice(info);
s = comedi_read_subdevice(info);
if (s == NULL) {
retval = -EIO;
goto done;