From a50eaab1e644445eaa1f9c92ef496b52d1531634 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Thu, 1 Feb 2024 22:00:26 +0900
Subject: [PATCH] [cmem] Allow delete_memsuper on null memsuper

While not done for freeing cmem blocks, it helps clean up shutdown code
when the memsuper may not have been created.
---
 libs/util/cmem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/util/cmem.c b/libs/util/cmem.c
index 9b13a4b6e..62fbc2dae 100644
--- a/libs/util/cmem.c
+++ b/libs/util/cmem.c
@@ -413,6 +413,9 @@ new_memsuper (void)
 void
 delete_memsuper (memsuper_t *super)
 {
+	if (!super) {
+		return;
+	}
 	// The block holding the superblock is always the last block in the list
 	while (super->memblocks && super->memblocks->next) {
 		memblock_t *t = super->memblocks;