From 1e2ededb07844d2d1d361a27f9181013aac4e1fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Thu, 29 Sep 2022 10:46:36 +0200
Subject: [PATCH] Add missing DbC check for name##_detach in ISC_REFCOUNT_IMPL
 macro

The detach function in the ISC_REFCOUNT_IMPL macro was missing DbC
checks, add them.
---
 lib/isc/include/isc/refcount.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/isc/include/isc/refcount.h b/lib/isc/include/isc/refcount.h
index bf0a66e32b..e33cd7df25 100644
--- a/lib/isc/include/isc/refcount.h
+++ b/lib/isc/include/isc/refcount.h
@@ -174,6 +174,7 @@ isc_refcount_decrement(isc_refcount_t *target) {
 	}                                                            \
                                                                      \
 	void name##_detach(name##_t **ptrp) {                        \
+		REQUIRE(ptrp != NULL && *ptrp != NULL);              \
 		name##_t *ptr = *ptrp;                               \
 		*ptrp = NULL;                                        \
 		name##_unref(ptr);                                   \