From 9dd1444f4431731bf4917488e0abec0d9a46fdcc Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Fri, 19 Feb 2021 11:45:00 +0100
Subject: [PATCH] detect: suppress error message for pcre only rules

---
 src/detect-parse.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/detect-parse.c b/src/detect-parse.c
index c3c0b6b179..e29423f2b2 100644
--- a/src/detect-parse.c
+++ b/src/detect-parse.c
@@ -624,10 +624,11 @@ static void SigMatchTransferSigMatchAcrossLists(SigMatch *sm,
 
 int SigMatchListSMBelongsTo(const Signature *s, const SigMatch *key_sm)
 {
-    const int nlists = s->init_data->smlists_array_size;
-    int list = 0;
+    if (key_sm == NULL)
+        return -1;
 
-    for (list = 0; list < nlists; list++) {
+    const int nlists = s->init_data->smlists_array_size;
+    for (int list = 0; list < nlists; list++) {
         const SigMatch *sm = s->init_data->smlists[list];
         while (sm != NULL) {
             if (sm == key_sm)