int scull_p_release (struct inode *inode, struct file *filp)
{
Scull_Pipe *dev = filp->private_data;
int scull_p_fasync (fasync_file fd, struct file *filp, int mode);
# ifdef LINUX_20
scull_p_fasync(inode, filp, 0);
# else
/* remove this filp from the asynchronously notified filp's */
scull_p_fasync(-1, filp, 0);
# endif
down (&dev->sem);
if (filp->f_mode & FMODE_READ)
dev->nreaders--;
if (filp->f_mode & FMODE_WRITE)
dev->nwriters--;
if (dev->nreaders + dev->nwriters == 0) {
kfree(dev->buffer);
dev->buffer = NULL; /* the other fields are not checked on open */
}
up (&dev->sem);
MOD_DEC_USE_COUNT;
return 0;
}
static int scull_p_release(struct inode *inode, struct file *filp)
{
struct scull_pipe *dev = filp->private_data;
/* remove this filp from the asynchronously notified filp's */
scull_p_fasync(-1, filp, 0);
down(&dev->sem);
if (filp->f_mode & FMODE_READ)
dev->nreaders--;
if (filp->f_mode & FMODE_WRITE)
dev->nwriters--;
if (dev->nreaders + dev->nwriters == 0) {
kfree(dev->buffer);
dev->buffer = NULL; /* the other fields are not checked on open */
}
up(&dev->sem);
return 0;
}
/* Nothing special to do, since we don't have any hardware to shutdown for while */
int scull_p_release(struct inode *inode, struct file *filp)
{
scull_p_fasync(-1, filp, 0);
return 0;
}
