From 241113c6b299ba06e4eab4b8c40d02d1afa7319b Mon Sep 17 00:00:00 2001
From: mwojcik <mw@m-labs.hk>
Date: Mon, 20 Sep 2021 15:03:49 +0200
Subject: [PATCH] 'while' is reverse of 'until'...

---
 src/runtime/src/rtio_mgt.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/runtime/src/rtio_mgt.rs b/src/runtime/src/rtio_mgt.rs
index ce91e2d..0b6fc80 100644
--- a/src/runtime/src/rtio_mgt.rs
+++ b/src/runtime/src/rtio_mgt.rs
@@ -328,7 +328,8 @@ fn async_error_thread() {
     loop {
         unsafe {
             // replaced io.until with spinlock
-            while csr::rtio_core::async_error_read() != 0 {}
+            // could potentially put a sleep in there?
+            while csr::rtio_core::async_error_read() == 0 {}
             
             let errors = csr::rtio_core::async_error_read();
             if errors & 1 != 0 {