How to fix this error "break statement not within loop or switch" for the following function:

if(list == NULL) { tbl->tbl[index] = element; } else { while(1) { if(strcmp(list->url, element->url) == 0) return; } if(list->next == NULL) break; list = list->next; } list->next = element; element->next = NULL; ++element->next; }