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

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Message-ID:
 <TYUPR06MB62171FA07658FE6500DB855FD28C2@TYUPR06MB6217.apcprd06.prod.outlook.com>
Date: Mon, 19 Aug 2024 08:48:22 +0000
From: 胡连勤 <hulianqin@...o.com>
To: Michael Nazzareno Trimarchi <michael@...rulasolutions.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:
 答复: 答复: [PATCH v1] usb: gadget: u_serial: check Null pointer in EP callback

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.
 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).

Thanks