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Date:   Wed, 13 Jul 2022 20:48:58 +0100
From:   "Russell King (Oracle)" <linux@armlinux.org.uk>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Guenter Roeck <linux@roeck-us.net>,
        Harry Wentland <harry.wentland@amd.com>,
        Leo Li <sunpeng.li@amd.com>,
        Alex Deucher <alexander.deucher@amd.com>,
        Balbir Singh <bsingharora@gmail.com>,
        Daniel Axtens <dja@axtens.net>,
        Paul Mackerras <paulus@ozlabs.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Kefeng Wang <wangkefeng.wang@huawei.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        amd-gfx list <amd-gfx@lists.freedesktop.org>
Subject: Re: Linux 5.19-rc6
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 <20220713050724.GA2471738@roeck-us.net>
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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@roeck-us.net> wrote:
> > OF: amba_device_add() failed (-19) for /amba/smc@10100000
> > ------------[ cut here ]------------
> > WARNING: CPU: 0 PID: 1 at lib/refcount.c:28 of_platform_bus_create+0x33c/0x3dc
> > refcount_t: underflow; use-after-free.
> 
> 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/

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.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!