From fe79a7d84bce908873534af27c07712cf2974d8e Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Tue, 7 Jun 2022 19:42:22 +0300
Subject: don't proceed if failed to read envtemp

---
 armbian-envtemp-cpufreq.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/armbian-envtemp-cpufreq.sh b/armbian-envtemp-cpufreq.sh
index 4b88edd..e46d3c2 100644
--- a/armbian-envtemp-cpufreq.sh
+++ b/armbian-envtemp-cpufreq.sh
@@ -95,6 +95,7 @@ echo -n "read" >&3
 read -t 5 response <&3
 
 envtemp=$(echo "$response" | jq ".temp" | awk "{print int(\$1+0.5)}")
+[ -z "$envtemp" ] && die "failed to read environment temperature"
 
 # setting corresponding cpu freq
 while read temp; do
-- 
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