NULL dereference

diff --git a/update/config.c b/update/config.c
index 083e1fd6c4f6efff2edb869bef02d25a17d06767..ee435c0b1d75c3f1bb164e595f21be4e331bf136 100644 (file)
--- a/update/config.c
+++ b/update/config.c
@@ -115,6 +115,7 @@ char *key;
 
     start = i++;
     if (config_keys[i] == NULL) i = 0;
+    if (config_keys[i] == NULL) return(NULL);
 
     do {
       if (!strcasecmp(key, config_keys[i]))