From 50f700ddb58f4f920ddf3e377537ee545f26bb26 Mon Sep 17 00:00:00 2001
From: Elias Naur <mail@eliasnaur.com>
Date: Fri, 26 Apr 2024 16:18:56 +0200
Subject: [PATCH] runtime: skip negative sleep durations in sleepTicks

sleepTicks calls machineLightSleep with the duration cast to an unsigned
integer. This underflow for negative durations.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
---
 src/runtime/runtime_rp2040.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/runtime/runtime_rp2040.go b/src/runtime/runtime_rp2040.go
index 8a8c343c58..fa048117b9 100644
--- a/src/runtime/runtime_rp2040.go
+++ b/src/runtime/runtime_rp2040.go
@@ -31,7 +31,7 @@ func nanosecondsToTicks(ns int64) timeUnit {
 }
 
 func sleepTicks(d timeUnit) {
-	if d == 0 {
+	if d <= 0 {
 		return
 	}