static int posix_clock_fasync(int fd, struct file *fp, int on)
{
struct posix_clock *clk = get_posix_clock(fp);
int err = 0;
if (!clk)
return -ENODEV;
if (clk->ops.fasync)
err = clk->ops.fasync(clk, fd, fp, on);
put_posix_clock(clk);
return err;
}
static int posix_clock_mmap(struct file *fp, struct vm_area_struct *vma)
{
struct posix_clock *clk = get_posix_clock(fp);
int err = -ENODEV;
if (!clk)
return -ENODEV;
if (clk->ops.mmap)
err = clk->ops.mmap(clk, vma);
put_posix_clock(clk);
return err;
}
static unsigned int posix_clock_poll(struct file *fp, poll_table *wait)
{
struct posix_clock *clk = get_posix_clock(fp);
int result = 0;
if (!clk)
return -ENODEV;
if (clk->ops.poll)
result = clk->ops.poll(clk, fp, wait);
put_posix_clock(clk);
return result;
}
static __poll_t posix_clock_poll(struct file *fp, poll_table *wait)
{
struct posix_clock *clk = get_posix_clock(fp);
__poll_t result = 0;
if (!clk)
return EPOLLERR;
if (clk->ops.poll)
result = clk->ops.poll(clk, fp, wait);
put_posix_clock(clk);
return result;
}
static ssize_t posix_clock_read(struct file *fp, char __user *buf,
size_t count, loff_t *ppos)
{
struct posix_clock *clk = get_posix_clock(fp);
int err = -EINVAL;
if (!clk)
return -ENODEV;
if (clk->ops.read)
err = clk->ops.read(clk, fp->f_flags, buf, count);
put_posix_clock(clk);
return err;
}
static long posix_clock_compat_ioctl(struct file *fp,
unsigned int cmd, unsigned long arg)
{
struct posix_clock *clk = get_posix_clock(fp);
int err = -ENOTTY;
if (!clk)
return -ENODEV;
if (clk->ops.ioctl)
err = clk->ops.ioctl(clk, cmd, arg);
put_posix_clock(clk);
return err;
}
static void put_clock_desc(struct posix_clock_desc *cd)
{
put_posix_clock(cd->clk);
fput(cd->fp);
}