Input: send key up events at disconnect

Emit key up events for all pressed keys/buttons when disconnecting
an input device. Cures "stuck" enter key effect when unloading
keyboard module.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 1fc0517..1c71dd6 100644 (file)
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1014,9 +1014,12 @@ EXPORT_SYMBOL(input_register_device);
 void input_unregister_device(struct input_dev *dev)
 {
        struct list_head *node, *next;
+       int code;
 
-       if (!dev)
-               return;
+       for (code = 0; code <= KEY_MAX; code++)
+               if (test_bit(code, dev->key))
+                       input_report_key(dev, code, 0);
+       input_sync(dev);
 
        del_timer_sync(&dev->timer);