afs_set_call_complete
afs_set_call_complete(call, error, 0);
afs_set_call_complete(call, call->error, call->abort_code);
afs_set_call_complete(call, ret, 0);
afs_set_call_complete(call, ret, remote_abort);
afs_set_call_complete(call, call->error, call->abort_code);
afs_set_call_complete(call, -EINTR, 0);
afs_set_call_complete(call, ret, remote_abort);