Merge branch 'collectd-5.7' into collectd-5.8

diff --cc src/aggregation.c
index 5fea279,272a04f..0ed97ae
--- 1/src/aggregation.c
--- 2/src/aggregation.c
+++ b/src/aggregation.c
@@@ -504,14 -507,10 +505,10 @@@ static int agg_config_handle_group_by(o
  
  static int agg_config_aggregation(oconfig_item_t *ci) /* {{{ */
  {
-   aggregation_t *agg;
-   _Bool is_valid;
-   int status;
- 
-   agg = calloc(1, sizeof(*agg));
+   aggregation_t *agg = calloc(1, sizeof(*agg));
    if (agg == NULL) {
      ERROR("aggregation plugin: calloc failed.");
 -    return (-1);
 +    return -1;
    }
  
    sstrncpy(agg->ident.host, "/.*/", sizeof(agg->ident.host));
@@@ -631,13 -636,12 +634,12 @@@
      is_valid = 0;
    } /* }}} */
  
-   if (!is_valid) /* {{{ */
-   {
+   if (!is_valid) { /* {{{ */
      sfree(agg);
 -    return (-1);
 +    return -1;
    } /* }}} */
  
-   status = lookup_add(lookup, &agg->ident, agg->group_by, agg);
+   int status = lookup_add(lookup, &agg->ident, agg->group_by, agg);
    if (status != 0) {
      ERROR("aggregation plugin: lookup_add failed with status %i.", status);
      sfree(agg);

diff --cc src/ping.c
index 6e056e4,03dea6d..8cefeed
--- 1/src/ping.c
--- 2/src/ping.c
+++ b/src/ping.c
@@@ -235,14 -233,13 +233,13 @@@ static void *ping_thread(void *arg) /* 
  
    c_complain_t complaint = C_COMPLAIN_INIT_STATIC;
  
-   pthread_mutex_lock(&ping_lock);
- 
-   pingobj = ping_construct();
+   pingobj_t *pingobj = ping_construct();
    if (pingobj == NULL) {
      ERROR("ping plugin: ping_construct failed.");
+     pthread_mutex_lock(&ping_lock);
      ping_thread_error = 1;
      pthread_mutex_unlock(&ping_lock);
 -    return ((void *)-1);
 +    return (void *)-1;
    }
  
    if (ping_source != NULL)
@@@ -276,9 -273,10 +273,10 @@@
  
    if (count == 0) {
      ERROR("ping plugin: No host could be added to ping object. Giving up.");
+     pthread_mutex_lock(&ping_lock);
      ping_thread_error = 1;
      pthread_mutex_unlock(&ping_lock);
 -    return ((void *)-1);
 +    return (void *)-1;
    }
  
    /* Set up `ts_int' */

diff --cc src/target_set.c
Simple merge