systemd: Remove unneeded/unhandled error returns (#1035)

Signed-off-by: Julius Volz <julius.volz@gmail.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/collector/systemd_linux.go b/collector/systemd_linux.go
index 6aee624..57aff5a 100644
--- a/collector/systemd_linux.go
+++ b/collector/systemd_linux.go
@@ -148,7 +148,7 @@ func (c *systemdCollector) collectUnitStatusMetrics(ch chan<- prometheus.Metric,
         }
 }
 
-func (c *systemdCollector) collectSockets(ch chan<- prometheus.Metric, units []unit) error {
+func (c *systemdCollector) collectSockets(ch chan<- prometheus.Metric, units []unit) {
         for _, unit := range units {
                 if !strings.HasSuffix(unit.Name, ".socket") {
                         continue
@@ -164,7 +164,6 @@ func (c *systemdCollector) collectSockets(ch chan<- prometheus.Metric, units []u
                         c.socketRefusedConnectionsDesc, prometheus.GaugeValue,
                         float64(unit.refusedConnections), unit.Name)
         }
-        return nil
 }
 
 func (c *systemdCollector) collectUnitStartTimeMetrics(ch chan<- prometheus.Metric, units []unit) {
@@ -175,7 +174,7 @@ func (c *systemdCollector) collectUnitStartTimeMetrics(ch chan<- prometheus.Metr
         }
 }
 
-func (c *systemdCollector) collectTimers(ch chan<- prometheus.Metric, units []unit) error {
+func (c *systemdCollector) collectTimers(ch chan<- prometheus.Metric, units []unit) {
         for _, unit := range units {
                 if !strings.HasSuffix(unit.Name, ".timer") {
                         continue
@@ -185,7 +184,6 @@ func (c *systemdCollector) collectTimers(ch chan<- prometheus.Metric, units []un
                         c.timerLastTriggerDesc, prometheus.GaugeValue,
                         float64(unit.lastTriggerUsec)/1e6, unit.Name)
         }
-        return nil
 }
 
 func (c *systemdCollector) collectSummaryMetrics(ch chan<- prometheus.Metric, summary map[string]float64) {