Am Montag, 3. August 2009 21:16:26 schrieb Alex Riesen:
> ep3in-bulk [ 54.274842] acm_rx_tasklet: enter
> [ 54.274845] acm_rx_tasklet: ep == NULL
> [ 54.274846] acm_rx_tasklet: leave
> [ 54.274863] usb 5-1: unregistering interface 5-1:1.0
> [ 54.275123] acm_disconnect: enter
> [ 54.275125] acm_disconnect: before mutex_lock(&open_mutex)
> [ 54.275195] acm_disconnect: after acm->dev = NULL
> [ 54.275368] acm_disconnect: enter
> [ 54.275370] acm_disconnect: leave (!acm)
> [ 54.275490] acm_disconnect: after mutex_unlock(&open_mutex)
> [ 54.275496] acm_disconnect: leave
Most interesting.
It seems like it bombs because this code:
if (dev->actconfig) {
for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
struct usb_interface *interface;
/* remove this interface if it has been registered */
interface = dev->actconfig->interface[i];
if (!device_is_registered(&interface->dev))
continue;
dev_dbg(&dev->dev, "unregistering interface %s\n",
dev_name(&interface->dev));
interface->unregistering = 1;
remove_intf_ep_devs(interface);
device_del(&interface->dev);
}
does something fishy in remove_intf_ep_devs()
I am investigating.
Regards
Oliver
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
