Input: remove unnecessary synchronize_rcu() call

There is no need to issue serialize_rcu() after adding a new handle
to the list of handles associated with the device because new events
will "see" the new handle in the list immediately. Remove it so we
can boot a little bit faster.

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

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 913392f..a79c833 100644 (file)
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1551,7 +1551,6 @@ int input_register_handle(struct input_handle *handle)
                return error;
        list_add_tail_rcu(&handle->d_node, &dev->h_list);
        mutex_unlock(&dev->mutex);
-       synchronize_rcu();
 
        /*
         * Since we are supposed to be called from ->connect()