while (td) {
struct td *td_next = td->next_dl_td;
+ struct ed *ed = td->ed;
+
+ /*
+ * Some OHCI controllers (NVIDIA for sure, maybe others)
+ * occasionally forget to add TDs to the done queue. Since
+ * TDs for a given endpoint are always processed in order,
+ * if we find a TD on the donelist then all of its
+ * predecessors must be finished as well.
+ */
+ for (;;) {
+ struct td *td2;
+
+ td2 = list_first_entry(&ed->td_list, struct td,
+ td_list);
+ if (td2 == td)
+ break;
+ takeback_td(ohci, td2);
+ }
+
takeback_td(ohci, td);
td = td_next;
}