Merge branch 'collectd-4.10' into collectd-5.0

[collectd.git] / src / utils_avltree.c

diff --git a/src/utils_avltree.c b/src/utils_avltree.c
index 9f0b796..12310d3 100644 (file)
--- a/src/utils_avltree.c
+++ b/src/utils_avltree.c
@@ -485,6 +485,8 @@ c_avl_tree_t *c_avl_create (int (*compare) (const void *, const void *))
 
 void c_avl_destroy (c_avl_tree_t *t)
 {
+       if (t == NULL)
+               return;
        free_node (t->root);
        free (t);
 }
@@ -581,6 +583,8 @@ int c_avl_get (c_avl_tree_t *t, const void *key, void **value)
 {
        c_avl_node_t *n;
 
+       assert (t != NULL);
+
        n = search (t, key);
        if (n == NULL)
                return (-1);