Fix clang-tidy issue and a leak

src/audio/audio.c

@@ -227,8 +227,8 @@ static void load_opus_music(unsigned char *buf, size_t len) {
 
 static path get_music_path(music_file_type *type, unsigned int resource_id) {
     assert(is_music(resource_id));
-    path original_music, new_music;
-    original_music = new_music = get_resource_filename(get_resource_file(resource_id));
+    path original_music;
+    original_music = get_resource_filename(get_resource_file(resource_id));
     *type = MUSIC_FILE_TYPE_PSM;
     return original_music;
 }

src/resources/modmanager.c

@@ -243,11 +243,15 @@ unsigned int modmanager_count_music(str *name) {
     list *l;
     unsigned int len = 0;
 
+    int result = 0;
+
     if(!hashmap_get_str(&mod_resources, str_c(&filename), (void **)&l, &len)) {
-        return list_size(l);
+        result = list_size(l);
     }
 
-    return 0;
+    str_free(&filename);
+
+    return result;
 }
 
 bool modmanager_get_music(str *name, unsigned int index, unsigned char **buf, size_t *buflen) {