ustream: make notify_state optional as well

[project/libubox.git] / ustream.c

diff --git a/ustream.c b/ustream.c
index ed4fbb3..8e6efcd 100644 (file)
--- a/ustream.c
+++ b/ustream.c
@@ -104,7 +104,8 @@ static void ustream_state_change_cb(struct uloop_timeout *t)
 
        if (s->write_error)
                ustream_free_buffers(&s->w);
-       s->notify_state(s);
+       if (s->notify_state)
+               s->notify_state(s);
 }
 
 void ustream_init_defaults(struct ustream *s)