1 files changed, 2 insertions, 15 deletions
diff --git a/src/database/rrdset.c b/src/database/rrdset.c
index e5273532f..396f66835 100644
--- a/src/database/rrdset.c
+++ b/src/database/rrdset.c
@@ -597,21 +597,6 @@ void rrdset_acquired_release(RRDSET_ACQUIRED *rsa) {
 // ----------------------------------------------------------------------------
 // RRDSET - rename charts
 
-char *rrdset_strncpyz_name(char *to, const char *from, size_t length) {
-    char c, *p = to;
-
-    while (length-- && (c = *from++)) {
-        if(c != '.' && c != '-' && !isalnum(c))
-            c = '_';
-
-        *p++ = c;
-    }
-
-    *p = '\0';
-
-    return to;
-}
-
 int rrdset_reset_name(RRDSET *st, const char *name) {
     if(unlikely(!strcmp(rrdset_name(st), name)))
         return 1;
@@ -747,6 +732,8 @@ void rrdset_get_retention_of_tier_for_collected_chart(RRDSET *st, time_t *first_
 }
 
 inline void rrdset_is_obsolete___safe_from_collector_thread(RRDSET *st) {
+    if(!st) return;
+
     rrdset_pluginsd_receive_unslot(st);
 
     if(unlikely(!(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) {