Fix NULL derefernece for anonymous users

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1907973 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/modules/dav/main/ms_wdv.c b/modules/dav/main/ms_wdv.c
index adbfb148d93717bfab13ce085d7ab6bf79de59c4..33787f977ae8638c761d32af2a69abf5655da571 100644 (file)
--- a/modules/dav/main/ms_wdv.c
+++ b/modules/dav/main/ms_wdv.c
@@ -80,7 +80,7 @@ static const char *get_lock_owner(request_rec *r, dav_lock *lock)
         lock = lock->next;
     }
 
-    return lock->auth_user;
+    return lock ? lock->auth_user : NULL;
 }