Auto-Merge pull request collectd#4285 from octo/6/write_prometheus_lock

Automatically merged due to "Automerge" label
octo · Feb 20, 2024 · 974c4e1 · 974c4e1
2 parents 49c9dd8 + 73eff54
commit 974c4e1
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/write_prometheus.c b/src/write_prometheus.c
@@ -824,8 +824,10 @@ static int prom_missing(metric_family_t const *fam,
   pthread_mutex_lock(&prom_metrics_lock);
 
   metric_family_t *prom_fam = NULL;
-  if (c_avl_get(prom_metrics, fam->name, (void *)&prom_fam) != 0)
+  if (c_avl_get(prom_metrics, fam->name, (void *)&prom_fam) != 0) {
+    pthread_mutex_unlock(&prom_metrics_lock);
     return 0;
+  }
 
   for (size_t i = 0; i < fam->metric.num; i++) {
     metric_t const *m = &fam->metric.ptr[i];