From 438eede6587ffb9327060f3440393c970cd0aefb Mon Sep 17 00:00:00 2001
From: Rick Altherr <rick@oxidecomputer.com>
Date: Thu, 3 Nov 2022 13:48:52 -0700
Subject: [PATCH] thermal: fix another case of subtraction in the wrong order

---
 task/thermal/src/control.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/task/thermal/src/control.rs b/task/thermal/src/control.rs
index 855634df0..ddedc1e19 100644
--- a/task/thermal/src/control.rs
+++ b/task/thermal/src/control.rs
@@ -680,7 +680,7 @@ impl<'a> ThermalControl<'a> {
                 for (v, i) in values.iter().zip(self.bsp.inputs.iter()) {
                     if let TemperatureReading::Valid { value, time_ms } = v {
                         let temperature = value.0
-                            + (time_ms - now_ms) as f32 / 1000.0
+                            + (now_ms - time_ms) as f32 / 1000.0
                                 * i.temps.temperature_slew_deg_per_sec;
                         any_power_down |=
                             temperature >= i.temps.power_down_temperature.0;