diff options
| -rw-r--r-- | drivers/input/evdev.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 70c0eb52ca9..054edf346e0 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -403,10 +403,15 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait) { struct evdev_client *client = file->private_data; struct evdev *evdev = client->evdev; + unsigned int mask; poll_wait(file, &evdev->wait, wait); - return ((client->head == client->tail) ? 0 : (POLLIN | POLLRDNORM)) | - (evdev->exist ? 0 : (POLLHUP | POLLERR)); + + mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR; + if (client->head != client->tail) + mask |= POLLIN | POLLRDNORM; + + return mask; } #ifdef CONFIG_COMPAT |