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Date:   Thu, 16 May 2019 21:27:52 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     Mark Brown <broonie@...nel.org>
CC:     <axel.lin@...ics.com>, <linux-kernel@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <albeu@...e.fr>,
        <lorenzo.bianconi@...hat.com>
Subject: Re: [PATCH] spi: bitbang: Fix NULL pointer dereference in
 spi_unregister_master

On 2019/5/16 17:51, Mark Brown wrote:
> On Thu, May 16, 2019 at 03:56:56PM +0800, YueHaibing wrote:
> 
>> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
>> Call Trace:
>>  dump_stack+0xa9/0x10e
>>  ? __list_del_entry_valid+0x45/0xd0
>>  ? __list_del_entry_valid+0x45/0xd0
>>  __kasan_report+0x171/0x18d
>>  ? __list_del_entry_valid+0x45/0xd0
>>  kasan_report+0xe/0x20
> 
> Please think hard before including complete backtraces in upstream
> reports, they are very large and contain almost no useful information
> relative to their size so often obscure the relevant content in your
> message. If part of the backtrace is usefully illustrative then it's
> usually better to pull out the relevant sections.

Thanks, got it.

> 

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