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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-07-15 23:28:42 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-07-15 23:53:00 -0700
commitc18fb1396eb809dbc16e51da273a1789f9d799bf (patch)
tree43a8f5a321dc625e4cf269a68ccd72fe3b93bcba /drivers/input/evdev.c
parent4d4bf995ea873cc213c5abc5402af46ef490b8fd (diff)
downloadop-kernel-dev-c18fb1396eb809dbc16e51da273a1789f9d799bf.zip
op-kernel-dev-c18fb1396eb809dbc16e51da273a1789f9d799bf.tar.gz
Input: evdev - signal that device is writable in evdev_poll()
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/evdev.c')
-rw-r--r--drivers/input/evdev.c9
1 files changed, 7 insertions, 2 deletions
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 @@ 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
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