From d622ff81fc59cd0694e0b964d21c384469d5fd8e Mon Sep 17 00:00:00 2001
From: Noriko Hosoi <nhosoi@redhat.com>
Date: Feb 19 2015 18:23:24 +0000
Subject: Coverity fix - Invalid Dereference in ndn_cache_add (dn.c)


(cherry picked from commit d132bc4014dc5bd5f69f403ca415de0007713b61)

---

diff --git a/ldap/servers/slapd/dn.c b/ldap/servers/slapd/dn.c
index 9c1084f..db050c8 100644
--- a/ldap/servers/slapd/dn.c
+++ b/ldap/servers/slapd/dn.c
@@ -2936,7 +2936,8 @@ ndn_cache_add(char *dn, size_t dn_len, char *ndn, size_t ndn_len)
         new_node->next = NULL;
     } else {
         new_node->next = ndn_cache->head;
-        ndn_cache->head->prev = new_node;
+        if(ndn_cache->head)
+            ndn_cache->head->prev = new_node;
     }
     ndn_cache->head = new_node;
     PR_Unlock(lru_lock);