RFC BugFix tagtree.c reload data abort

TagNav.lua adds Reload to the Custom View menu of tagnav to allow users to make new search queries on the fly
previously you had to reboot the device to do this

I was getting a data abort prior to calling tagnav_init now but it worked fine if I copy pasted
the contents of the init function

I'm not sure how this fixed it but making a static init function makes it work as intended
is it a race some weird thing with the compiler??

Ideas??

Change-Id: I7fd6c50f929d3ac2d9ecec5336942288e9213ad5

1 files changed, 10 insertions, 3 deletions

diff --git a/apps/tagtree.c b/apps/tagtree.c
index 8e7b868dbc..7887ee1c36 100644
--- a/apps/tagtree.c
+++ b/apps/tagtree.c
@@ -1248,7 +1248,7 @@ static void tagtree_unload(struct tree_context *c)
         tree_unlock_cache(c);
 }
 
-void tagtree_init(void)
+static bool initialize_tagtree(void) /* also used when user selects 'Reload' in 'custom view'*/
 {
     max_history_level = 0;
     format_count = 0;
@@ -1269,7 +1269,7 @@ void tagtree_init(void)
     if (!parse_menu(tagnavi_file))
     {
         tagtree_unload(NULL);
-        return;
+        return false;
     }
 
     /* safety check since tree.c needs to cast tagentry to entry */
@@ -1286,6 +1286,12 @@ void tagtree_init(void)
     add_event(PLAYBACK_EVENT_TRACK_FINISH, tagtree_track_finish_event);
 
     core_shrink(tagtree_handle, core_get_data(tagtree_handle), tagtree_buf_used);
+    return true;
+}
+
+void tagtree_init(void)
+{
+    initialize_tagtree();
 }
 
 static bool show_search_progress(bool init, int count)
@@ -1815,7 +1821,8 @@ int tagtree_load(struct tree_context* c)
         {
             splash(HZ, str(LANG_WAIT));
             tagtree_unload(c);
-            tagtree_init();
+            if (!initialize_tagtree())
+                return 0;
         }
         c->dirlevel = 0;
         count = load_root(c);