static __poll_t hidraw_poll(struct file *file, poll_table *wait)
{
struct hidraw_list *list = file->private_data;
+ __poll_t mask = EPOLLOUT | EPOLLWRNORM; /* hidraw is always writable */
poll_wait(file, &list->hidraw->wait, wait);
if (list->head != list->tail)
- return EPOLLIN | EPOLLRDNORM;
+ mask |= EPOLLIN | EPOLLRDNORM;
if (!list->hidraw->exist)
- return EPOLLERR | EPOLLHUP;
- return EPOLLOUT | EPOLLWRNORM;
+ mask |= EPOLLERR | EPOLLHUP;
+ return mask;
}
static int hidraw_open(struct inode *inode, struct file *file)
static __poll_t uhid_char_poll(struct file *file, poll_table *wait)
{
struct uhid_device *uhid = file->private_data;
+ __poll_t mask = EPOLLOUT | EPOLLWRNORM; /* uhid is always writable */
poll_wait(file, &uhid->waitq, wait);
if (uhid->head != uhid->tail)
- return EPOLLIN | EPOLLRDNORM;
+ mask |= EPOLLIN | EPOLLRDNORM;
- return EPOLLOUT | EPOLLWRNORM;
+ return mask;
}
static const struct file_operations uhid_fops = {