Accept FS#11722 by Michael Hohmuth

Wait for the db to be ready before trying to to any runtime stats

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28608 a1c6a512-1295-4272-9138-f99709370657

apps/tagtree.c

@@ -652,6 +652,9 @@ static void tagtree_buffer_event(void *data)
 
     logf("be:%s", id3->path);
     
+    while (! tagcache_is_usable())
+        yield();
+
     if (!tagcache_find_index(&tcs, id3->path))
     {
         logf("tc stat: not found: %s", id3->path);

docs/CREDITS

@@ -565,6 +565,7 @@ David Fowle
 Fabian Vogel
 Michael Stummvoll
 Franz-Josef Haider
+Michael Hohmuth
 
 The libmad team
 The wavpack team