Am Montag, 13. März 2006 23:33 schrieb Greg KH:
> > Wouldn't it be better to do get_device() on control_interface->dev just
> > before calling tty_register_device(), so that the data structure isn't
> > released too soon? (And of course, call put_device() after the tty
> > device is unregistered.) That way all the sysfs links remain intact, as
> > intended.
>
> The sysfs core does the 'get' when it creates the symlink. I'm guessing
> that the acm driver isn't properly handing the reference counting of it,
> but I haven't looked into it much just yet...
It does usb_get_intf() before it passes the reference to the tty layer.
Regards
Oliver
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