Input: fix open count handling in input interfaces

[h-e-n] / drivers / input / evdev.c

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index bfee4f9..d404aa8 100644 (file)
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -192,8 +192,11 @@ static int evdev_open_device(struct evdev *evdev)
 
        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;