diff options
| -rw-r--r-- | playtree.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/playtree.c b/playtree.c index ea3ec60ed6..f29cf0b287 100644 --- a/playtree.c +++ b/playtree.c @@ -441,7 +441,8 @@ play_tree_iter_new(play_tree_t* pt,m_config_t* config) { void play_tree_iter_free(play_tree_iter_t* iter) { - + + if ( !iter ) return; #ifdef MP_DEBUG assert(iter != NULL); #endif @@ -460,6 +461,7 @@ int play_tree_iter_step(play_tree_iter_t* iter, int d,int with_nodes) { play_tree_t* pt; + if ( !iter ) return PLAY_TREE_ITER_ERROR; #ifdef MP_DEBUG assert(iter != NULL); assert(iter->root != NULL); |