From b2ca6a4b8a9b05ccee8ab29504bae86cbca753fb Mon Sep 17 00:00:00 2001
From: "Kim B. Heino" <b@bbbs.net>
Date: Fri, 9 Oct 2020 15:32:36 +0300
Subject: [PATCH] irqstats: rework previous commit to make shellcheck happy

Tested on dash/bash/busybox.
---
 plugins/irqstats | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugins/irqstats b/plugins/irqstats
index 13c3fb3..6849f4c 100644
--- a/plugins/irqstats
+++ b/plugins/irqstats
@@ -29,7 +29,9 @@ fetch_irqstats() {
     VALUE=0
     for VAL in $VALS;
     do
-      VALUE=$((VALUE + $VAL))
+      if [ "$VAL" -eq "$VAL" ] 2> /dev/null; then
+        VALUE=$((VALUE + VAL))
+      fi
     done
     echo "i$ID.value $VALUE"
   done