From eb9ed2a82b236fee5b4c02611dcd0eec0ba0faab Mon Sep 17 00:00:00 2001
From: Tim Connors <tconnors@rather.puzzling.org>
Date: Tue, 8 Dec 2020 13:40:17 +1100
Subject: [PATCH] if no valid temps, fallback to default

---
 R710-IPMI-TEMP/fan-speed-control.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/R710-IPMI-TEMP/fan-speed-control.pl b/R710-IPMI-TEMP/fan-speed-control.pl
index 934b470..6df55ca 100755
--- a/R710-IPMI-TEMP/fan-speed-control.pl
+++ b/R710-IPMI-TEMP/fan-speed-control.pl
@@ -98,7 +98,7 @@ sub set_fans_servo {
                                   average(@cputemps), average(@coretemps), average(@hddtemps)),
                           average(@hddtemps));
 
-  if (!defined $weighted_temp) {
+  if (!defined $weighted_temp or $weighted_temp == 0) {
     print "Error reading all temperatures! Fallback to idrac control\n";
     set_fans_default();
     return;