Fix settings not saving to disk correctly, (fixes FS#6408)

Stop playback.c requesting a rebuffer while not playing
Shutting down from inside the menu will now save settings to disk, and
entering the main menu will not force a setting save unless a setting
actually changes


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11674 a1c6a512-1295-4272-9138-f99709370657

4 files changed, 10 insertions, 2 deletions

diff --git a/apps/main.c b/apps/main.c
index 753cd71e8d..bfc331dc88 100644
--- a/apps/main.c
+++ b/apps/main.c
@@ -162,6 +162,7 @@ int init_dircache(bool preinit)
         {
             backlight_on();
             show_logo();
+            settings_save();
         }
     }
     
diff --git a/apps/main_menu.c b/apps/main_menu.c
index 0ac4d94753..f66f511e9c 100644
--- a/apps/main_menu.c
+++ b/apps/main_menu.c
@@ -435,7 +435,6 @@ bool main_menu(void)
 #endif
     menu_exit(m);
 
-    settings_save();
     return result;
 }
 
diff --git a/apps/playback.c b/apps/playback.c
index 02af5b6ec4..294bb3d69c 100644
--- a/apps/playback.c
+++ b/apps/playback.c
@@ -3560,7 +3560,7 @@ static void audio_thread(void)
         else
         {
             queue_wait_w_tmo(&audio_queue, &ev, HZ/2);
-            if ( (ev.id == SYS_TIMEOUT) &&
+            if (playing && (ev.id == SYS_TIMEOUT) &&
                 (FILEBUFUSED < high_watermark))
                 register_ata_idle_func(ata_fillbuffer_callback);
         }
diff --git a/apps/settings.c b/apps/settings.c
index 94d456fcf5..91ffc0d238 100644
--- a/apps/settings.c
+++ b/apps/settings.c
@@ -2086,6 +2086,14 @@ bool do_set_setting(const unsigned char* string, void *variable,
         if ( function )
             function(type_fromvoidptr(cb_data->type,variable));
     }
+    if (cb_data->type == INT)
+    {
+        if (oldvalue != *(int*)variable)
+            settings_save();
+    }
+    else if (oldvalue != *(bool*)variable)
+         settings_save();
+
     return false;
 }
 bool set_int(const unsigned char* string,