# Re: circular submissions in cdc-wdm and how to break them on disconnect

- From: Tetsuo Handa \<penguin-kernel@i-love.sakura.ne.jp\>
- Date: 2021-02-18 16:31:47 
- List: linux-usb
- Page: https://ratatoskr.run/linux-usb/2021/02/8876363
- Thread: https://ratatoskr.run/linux-usb/2021/01/8876021/t.md

```text
On 2021/02/18 21:55, Oliver Neukum wrote:
> Could you test whether the attached patch fixes your issue?

"INFO: task hung in wdm_flush" was fixed on 2020/11/16 12:12, and
as far as I know syzbot is not reporting any problem with this driver.
I don't have issues regardless of your patch. I can't test your patch.


> URBs with thos callbacks. This needs to be blocked, stopped

s/thos/those/
```