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Subject: Re: [Bug 214453] New: skl_int3472_unregister_clock: kernel NULL
 pointer dereference (HP Elite x2 1013 G3)
To:     Borislav Petkov <bp@alien8.de>,
        platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Hans de Goede <hdegoede@redhat.com>,
        Mark Gross <mgross@linux.intel.com>
References: <bug-214453-6385@https.bugzilla.kernel.org/>
 <YVsy5Gv3z6JAWnxj@zn.tnic>
From:   Daniel Scally <djrscally@gmail.com>
Message-ID: <81329df6-b24d-e860-fcb1-b01c8b5caa91@gmail.com>
Date:   Tue, 5 Oct 2021 15:44:59 +0100
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Hi Borislav

On 04/10/2021 17:59, Borislav Petkov wrote:
> Adding more people to Cc.
>
> On Fri, Sep 17, 2021 at 12:18:27PM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
>> https://bugzilla.kernel.org/show_bug.cgi?id=214453
>>
>>             Bug ID: 214453
>>            Summary: skl_int3472_unregister_clock: kernel NULL pointer
>>                     dereference (HP Elite x2 1013 G3)
>>            Product: Platform Specific/Hardware
>>            Version: 2.5
>>     Kernel Version: 5.14.5
>>           Hardware: Intel
>>                 OS: Linux
>>               Tree: Mainline
>>             Status: NEW
>>           Severity: low
>>           Priority: P1
>>          Component: x86-64
>>           Assignee: platform_x86_64@kernel-bugs.osdl.org
>>           Reporter: kernel-NTEO@vplace.de
>>         Regression: No
>>
>> Created attachment 298863
>>   --> https://bugzilla.kernel.org/attachment.cgi?id=298863&action=edit
>> dmesg oops log
>>
>> On a HP Elite x2 1013 G3 a kernel oops is caused by int3472:
>>
>> [    8.820565] int3472-discrete INT3472:02: No sensor module config
>> [    8.820569] int3472-discrete INT3472:02: error -EINVAL: Failed to map
>> regulator to sensor
>> [    8.820574] BUG: kernel NULL pointer dereference, address: 0000000000000000
>> [...]
>> [    8.820654] Call Trace:
>> [    8.820657]  clkdev_drop+0x1d/0x60
>> [    8.820665]  skl_int3472_unregister_clock+0x15/0x30 [intel_skl_int3472
>> a61329898df9463f8661b1eee1ed1e20b1626f62]


Thanks for the report; let me take a look and see if I can spot what's
going wrong.


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