commit 064450140f1eab959bd0eca0245f449993216074
author Oliver Neukum <oliver@neukum.org> Fri Oct 12 14:18:40 2007 -0400
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> Fri Oct 12 14:18:40 2007 -0400
tree ae8c7e238224b74e90f860129b1236c3eeedc470
parent 1ea3abf7fbc39b3b543d7438159ba07b6411561c

Input: fix open count handling in input interfaces

If input_open_device() fails we should not leave interfaces marked
as  opened.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/evdev.c

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index bfee4f9..d404aa8 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -192,8 +192,11 @@
 
 	if (!evdev->exist)
 		retval = -ENODEV;
-	else if (!evdev->open++)
+	else if (!evdev->open++) {
 		retval = input_open_device(&evdev->handle);
+		if (retval)
+			evdev->open--;
+	}
 
 	mutex_unlock(&evdev->mutex);
 	return retval;