From c18fb1396eb809dbc16e51da273a1789f9d799bf Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 15 Jul 2010 23:28:42 -0700 Subject: [PATCH] Input: evdev - signal that device is writable in evdev_poll() Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 70c0eb52ca96..054edf346e0b 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 -- 2.20.1