From e72cebbad65c054ac3bb03a12d6c1102a78c834f Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Thu, 16 Aug 2018 00:29:18 -0700
Subject: [PATCH] Fix crash due to unsigned index and 0 boundary loop.

---
 supervisor/shared/memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/supervisor/shared/memory.c b/supervisor/shared/memory.c
index 34c5dfb6f8..6c8be3be8a 100755
--- a/supervisor/shared/memory.c
+++ b/supervisor/shared/memory.c
@@ -43,7 +43,7 @@ void memory_init(void) {
 }
 
 void free_memory(supervisor_allocation* allocation) {
-    uint8_t index = 0;
+    int32_t index = 0;
     bool found = false;
     for (index = 0; index < CIRCUITPY_SUPERVISOR_ALLOC_COUNT; index++) {
         found = allocation == &allocations[index];