From 396a9f8ce52c351e0e5179b86ab4cf2f82f5091d Mon Sep 17 00:00:00 2001
From: Holger Obermaier <40787752+ho-ob@users.noreply.github.com>
Date: Fri, 6 Feb 2026 13:09:19 +0100
Subject: [PATCH] Fixed Error return value of `...` is not checked (errcheck)

---
 collectors/cpustatMetric.go | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/collectors/cpustatMetric.go b/collectors/cpustatMetric.go
index d66f957..5530e73 100644
--- a/collectors/cpustatMetric.go
+++ b/collectors/cpustatMetric.go
@@ -80,9 +80,17 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 	// Check input file
 	file, err := os.Open(string(CPUSTATFILE))
 	if err != nil {
-		cclog.ComponentError(m.name, err.Error())
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("Init(): Failed to open file '%s': %v", string(CPUSTATFILE), err))
 	}
-	defer file.Close()
+	defer func() {
+		if err := file.Close(); err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Init(): Failed to close file '%s': %v", string(CPUSTATFILE), err))
+		}
+	}()
 
 	// Pre-generate tags for all CPUs
 	num_cpus := 0