Re: [PATCH v2] usb hub: send clear_tt_buffer_complete events when canceling TT clear work

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

 



On Mon, 1 Oct 2012, Octavian Purdila wrote:

> There is a race condition in the USB hub code with regard to handling
> TT clear requests that can get the HCD driver in a deadlock. Usually
> when an TT clear request is scheduled it will be executed immediately:

...

> This patch changes hub_quiesce behavior to flush the TT clear work
> instead of canceling it, to make sure that no TT clear request remains
> uncompleted before suspend.
> 
> Signed-off-by: Octavian Purdila <octavian.purdila@xxxxxxxxx>

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

--
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