From cce2c9d27b2df5c0a55ce201b3fca1c9a5e58dcf Mon Sep 17 00:00:00 2001
From: shchmue <shchmue@gmail.com>
Date: Fri, 25 Oct 2019 18:54:22 -0600
Subject: [PATCH] heap: Prevent node chain collapse on free

---
 source/mem/heap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/mem/heap.c b/source/mem/heap.c
index 4971d8a..fd46c16 100644
--- a/source/mem/heap.c
+++ b/source/mem/heap.c
@@ -56,6 +56,7 @@ static u32 _heap_alloc(heap_t *heap, u32 size, u32 alignment)
 			node->used = 1;
 			new->used = 0;
 			new->next = node->next;
+			new->next->prev = new;
 			new->prev = node;
 			node->next = new;