linux-kernel - Re: Linux 5.19-rc6

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Message-ID: <d5b32c3f-b0dd-a816-5ddf-ecf4032aa571@huawei.com>
Date:   Thu, 14 Jul 2022 09:30:04 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>
CC:     Guenter Roeck <linux@...ck-us.net>,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Balbir Singh <bsingharora@...il.com>,
        "Daniel Axtens" <dja@...ens.net>,
        Paul Mackerras <paulus@...abs.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>
Subject: Re: Linux 5.19-rc6


On 2022/7/14 3:48, Russell King (Oracle) wrote:
> On Wed, Jul 13, 2022 at 12:36:50PM -0700, Linus Torvalds wrote:
>> On Tue, Jul 12, 2022 at 10:07 PM Guenter Roeck <linux@...ck-us.net> wrote:
>>> OF: amba_device_add() failed (-19) for /amba/smc@...00000
>>> ------------[ cut here ]------------
>>> WARNING: CPU: 0 PID: 1 at lib/refcount.c:28 of_platform_bus_create+0x33c/0x3dc
>>> refcount_t: underflow; use-after-free.
Sorry to lead to this issue,
>> This too has been going on since -rc1, but it's not obvious what caused it.
>>
>> At a guess, looking around the amba changes, I'm assuming it's
>>
>>    7719a68b2fa4 ("ARM: 9192/1: amba: fix memory leak in amba_device_try_add()")
>>
>> Does reverting that commit make it go away?
> There may be a patch that solves that, but it's never been submitted to
> my patch system:
>
> https://lore.kernel.org/all/20220524025139.40212-1-wangkefeng.wang@huawei.com/
This patch is to fix the above issue reported-by Guenter, and it merged 
into linux-next
for a while, which Applied in 
https://www.armlinux.org.uk/developer/patches/viewpatch.php?id=9207/1
>
> I'm sorry, but I'm utterly crap at picking up patches off mailing lists,
> so if stuff doesn't end up inthe patch system, it gets missed.
Is there some special for bugfix patch when send to arm patch system, please
let me know if I missed.