From a9b1d171be1e724b588d0fe3f423e86fcea5cb1f Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 7 Nov 2014 18:12:42 +0100
Subject: [PATCH] idnode: fix the string filter for webui

---
 src/idnode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/idnode.c b/src/idnode.c
index 962d0ba1..e9d52c61 100644
--- a/src/idnode.c
+++ b/src/idnode.c
@@ -818,7 +818,8 @@ idnode_filter
       }
       if (strdisp)
         free(strdisp);
-      return r;
+      if (r)
+        return r;
     } else if (f->type == IF_NUM || f->type == IF_BOOL) {
       int64_t a, b;
       if (idnode_get_s64(in, f->key, &a))