From ff2c10cced64e0a3eddffd1e465aa94c7afa816e Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Tue, 16 Apr 2019 15:34:22 +1000
Subject: [PATCH] add assertions to silence clang false positive

(cherry picked from commit bed9ad79badb28cdccbe7937da111ce35eb7570c)
---
 lib/ns/query.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/ns/query.c b/lib/ns/query.c
index 11accf9b37..93c532c529 100644
--- a/lib/ns/query.c
+++ b/lib/ns/query.c
@@ -6480,11 +6480,15 @@ query_checkrpz(query_ctx_t *qctx, isc_result_t result) {
  */
 static isc_result_t
 query_rpzcname(query_ctx_t *qctx, dns_name_t *cname) {
-	ns_client_t *client = qctx->client;
+	ns_client_t *client;
 	dns_fixedname_t prefix, suffix;
 	unsigned int labels;
 	isc_result_t result;
 
+	REQUIRE(qctx != NULL && qctx->client != NULL);
+
+	client = qctx->client;
+
 	CTRACE(ISC_LOG_DEBUG(3), "query_rpzcname");
 
 	labels = dns_name_countlabels(cname);