From 09d1c846c4a72c1e6a2d72657c58c2abe55984cf Mon Sep 17 00:00:00 2001
From: Jeff Epler <jepler@gmail.com>
Date: Wed, 13 Jul 2022 13:53:22 -0500
Subject: [PATCH] Set heap size to 0 when heap allocation fails

---
 ports/espressif/supervisor/port.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ports/espressif/supervisor/port.c b/ports/espressif/supervisor/port.c
index 0169f5ce16..78c3508458 100644
--- a/ports/espressif/supervisor/port.c
+++ b/ports/espressif/supervisor/port.c
@@ -235,6 +235,7 @@ safe_mode_t port_init(void) {
         heap_size = HEAP_SIZE / sizeof(uint32_t);
     }
     if (heap == NULL) {
+        heap_size = 0;
         return NO_HEAP;
     }