Re: [BUG] pxa27x_udc: possible recursive locking detected in pxa_ep_queue

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



David Brownell <david-b@xxxxxxxxxxx> writes:

> On Sunday 06 December 2009, Robert Jarzmik wrote:
> Dropping the lock before complete() is exactly the right thing to do.
Good, just as Alan said too.

> But make sure your ep_queue() method understands that sometimes it's
> only supposed to *queue* and not activate tx/rx.
Yes, I understand. A kind of atomic count, on all methods called from gadget,
which prevents reentrance (ie. no chains queue()->...->complete()->queue()).

As I have a bit of luck, all transfers are triggered through handle_ep(), which
if not called won't trigger any rx/tx (if counter was incremented).

Thanks for the info.

--
Robert
--
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

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux