Input: evdev - signal that device is writable in evdev_poll()
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 70c0eb5..054edf3 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -403,10 +403,15 @@
{
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