linux-kernel - Re: 答复: [PATCH v1] usb: gadget: u_serial: check Null pointer in EP callback

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Message-ID: <CAOf5uwk-De+dCaL-xZMByFoMoxD7X1_KnOriq1MKAz5s+mOFiw@mail.gmail.com>
Date: Mon, 19 Aug 2024 10:53:42 +0200
From: Michael Nazzareno Trimarchi <michael@...rulasolutions.com>
To: 胡连勤 <hulianqin@...o.com>
Cc: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>, 
	"quic_prashk@...cinc.com" <quic_prashk@...cinc.com>, 
	"quic_jjohnson@...cinc.com" <quic_jjohnson@...cinc.com>, 
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"opensource.kernel" <opensource.kernel@...o.com>, 
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
Subject: Re: 答复: [PATCH v1] usb: gadget: u_serial: check Null pointer in EP callback

Hi

On Mon, Aug 19, 2024 at 10:48 AM 胡连勤 <hulianqin@...o.com> wrote:
>
> Hello linux community expert:
>
> >> >>I think this has been reported previously, and different patches have been proposed, have you searched the archives?
> >> > I haven't seen the patch given below before, I will read it carefully.
> >> > I searched for Linux mainline commits before submitting, but I only compared them according to the crash stack information and did not notice the following commit.
> >>  I checked the stack trace again. The problem we encountered seems different from the problem reported in the link below, and they are not caused by the same reason.
> >>
>
> >Did you apply the patch? as suggested, is the test moving from one gadget to the other?
>  We apply the patch into kernel 5.15 and ran a stress test, and the problem did not recur.

It means that does not happen again?

>  Connect the phone to the PC via a USB cable and run the monkey test (run an apk and click on it at will on the phone interface).
>

Yes I know but this monkey test is running a stress test moving from
usb storage, to other configfs right?

Michael

> Thanks



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Michael Nazzareno Trimarchi
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