/* Not found. */
if (num_open >= MAX_PRINT_DBS_OPEN) {
/* Try and recycle the last entry. */
- DLIST_PROMOTE(print_db_head, last_entry);
+ if (print_db_head && last_entry) {
+ DLIST_PROMOTE(print_db_head, last_entry);
+ }
for (p = print_db_head; p; p = p->next) {
if (p->ref_count)
memset(p->printer_name, '\0', sizeof(p->printer_name));
break;
}
- if (p) {
+ if (p && print_db_head) {
DLIST_PROMOTE(print_db_head, p);
p = print_db_head;
}