Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Tue, 8 Aug 2023 14:35:29 -0500
From:   Bjorn Helgaas <helgaas@kernel.org>
To:     Michal =?iso-8859-1?Q?Koutn=FD?= <mkoutny@suse.com>
Cc:     Igor Mammedov <imammedo@redhat.com>, linux-kernel@vger.kernel.org,
        terraluna977@gmail.com, bhelgaas@google.com,
        linux-pci@vger.kernel.org, mst@redhat.com, rafael@kernel.org,
        linux-acpi@vger.kernel.org
Subject: Re: [PATCH 1/1] PCI: acpiphp:: use
 pci_assign_unassigned_bridge_resources() only if bus->self not NULL
Message-ID: <20230808193529.GA330050@bhelgaas>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <ku2hdnc2wixu5ygnwvtzbti3ujgkcte7fluvypno2zufnqqzt5@5ip4ndk4ha5l>
Precedence: bulk

On Tue, Aug 08, 2023 at 11:25:06AM +0200, Michal Koutn? wrote:
> Hello.
> 
> On Wed, Jul 26, 2023 at 02:35:18PM +0200, Igor Mammedov <imammedo@redhat.com> wrote:
> > The issue was discovered on Dell Inspiron 7352/0W6WV0 laptop with
> > following sequence:
> >    1. suspend to RAM
> >    2. wake up with the same backtrace being observed:
> >    3. 2nd suspend to RAM attempt makes laptop freeze
> 
> My Dell laptop suffers this since v6.5-rc1.
> I've found this thread because of the same call stack triggering the
> NULL ptr dereference I captured on my machine.
> 
> I applied this patch and resume works as before and I have observed no
> issues during typical usage.
> 
> I'd be glad if a fix like this makes it into the next -rc.
> Feel free to add
> 
> Tested-by: Michal Koutn? <mkoutny@suse.com>

Added tested-by for both you and Woody, thank you very much!  This
should appear in -rc6.

Bjorn