Hi Evan,

Evan Green <evgreen@google.com> writes:
> Hello stablers,
>
> With the following revert being backported to stable:
> a9c859033f6ec Revert "usb: gadget: ffs: Fix BUG when userland exits
> with submitted AIO transfers"
>
> The original bug it fixed is back. I wonder if we should be

Is it so that the original bug only happens with dwc3? If so, then we
should definitely backport the series below.

> backporting the series that seems to quietly fix that issue:
> fec9095bdef4e usb: dwc3: gadget: remove wait_end_transfer
> d4f1afe5e896c usb: dwc3: gadget: move requests to cancelled_list
> d5443bbf5fc8f usb: dwc3: gadget: introduce cancelled_list
> 7746a8dfb3f9c usb: dwc3: gadget: extract dwc3_gadget_ep_skip_trbs()
> c3acd59014148 usb: dwc3: gadget: use num_trbs when skipping TRBs on ->dequeue()
> 09fe1f8d7e2f4 usb: dwc3: gadget: track number of TRBs per request
> 1a22ec6435806 usb: dwc3: gadget: combine unaligned and zero flags
>
> (Patch 1/8 of the original series was already backported). I know we
> saw this with 4.19, I'm not sure which other versions it would go
> into.

We could ask Greg to backport at least for v4.14. I'm not sure this
applies to v4.9.

-- 
balbi