perl: Check for NULL before dereferencing

[collectd.git] / src / utils_avltree.c

diff --git a/src/utils_avltree.c b/src/utils_avltree.c
index ecaf3c9..139d23a 100644 (file)
--- a/src/utils_avltree.c
+++ b/src/utils_avltree.c
@@ -648,6 +648,7 @@ int c_avl_pick (c_avl_tree_t *t, void **key, void **value)
        *value = n->value;
 
        free_node (n);
+       --t->size;
        rebalance (t, p);
 
        return (0);