X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Futils_avltree.c;h=12310d3fa771d528fabc5ac313f76d42ed71aef6;hb=c6da31fb30c2fb1d131f92efcde0b3ec9a010b2c;hp=9f0b7968916863f1d42abfca8bc594afdeacea2a;hpb=2e8ad93a2f3856644a74fb508d10a9e8e4704293;p=collectd.git

diff --git a/src/utils_avltree.c b/src/utils_avltree.c
index 9f0b7968..12310d3f 100644
--- 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);