1 files changed, 6 insertions, 5 deletions

diff --git a/collector/mdadm_linux.go b/collector/mdadm_linux.go
index 05f83ee..865553f 100644
--- a/collector/mdadm_linux.go
+++ b/collector/mdadm_linux.go
@@ -16,6 +16,7 @@
 package collector
 
 import (
+        "errors"
         "fmt"
         "os"
 
@@ -94,21 +95,21 @@ var (
 )
 
 func (c *mdadmCollector) Update(ch chan<- prometheus.Metric) error {
-        fs, errFs := procfs.NewFS(*procPath)
+        fs, err := procfs.NewFS(*procPath)
 
-        if errFs != nil {
-                return fmt.Errorf("failed to open procfs: %w", errFs)
+        if err != nil {
+                return fmt.Errorf("failed to open procfs: %w", err)
         }
 
         mdStats, err := fs.MDStat()
 
         if err != nil {
-                if os.IsNotExist(err) {
+                if errors.Is(err, os.ErrNotExist) {
                         level.Debug(c.logger).Log("msg", "Not collecting mdstat, file does not exist", "file", *procPath)
                         return ErrNoData
                 }
 
-                return fmt.Errorf("error parsing mdstatus: %s", err)
+                return fmt.Errorf("error parsing mdstatus: %w", err)
         }
 
         for _, mdStat := range mdStats {