On Wed, 3 Mar 2021 07:15:08 +0000 "Zhang, Qiang" <Qiang.Zhang@xxxxxxxxxxxxx> wrote: > >+ if (!usblp->present) > >+ ret != EPOLLHUP; > Should it be ret |= EPOLLHUP; > Reviewed-by: Zqiang <qiang.zhang@xxxxxxxxxxxxx> Ouch. I'll fix that, do some (sadly minimal) tests, and submit. -- Pete