Am Dienstag, 22. März 2011, 11:12:24 schrieb Johan Hovold:
> +static void acm_read_bulk_callback(struct urb *urb)
> +{
> + struct acm_rb *rb = urb->context;
> + struct acm *acm = rb->instance;
> + unsigned long flags;
>
> - buf = list_entry(acm->spare_read_bufs.next,
> - struct acm_rb, list);
> - list_del(&buf->list);
> + dev_vdbg(&acm->data->dev, "%s - urb %d, len %d\n", __func__,
> + rb->index, urb->actual_length);
> + set_bit(rb->index, &acm->read_urbs_free);
You are marking the URB as free before it is processed.
Regards
Oliver
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