Re: [BUG] thunderbolt: NULL pointer dereference in tb_dp_dprx_work after device disconnect (7.2.6)

[Mario Limonciello <mario.limonciello@amd.com>]

On 10/20/26 08:41, Paweł Frelek wrote:
> pon., 19 paź 2026 o 23:00 Mario Limonciello
> <mario.limonciello@amd.com> napisał(a):
>> I have a few patches I was going to propose for this area.  Can you see
>> if these help?
> 
> Hi Mario,
> 
> These are the same three patches you shared on
> https://gitlab.freedesktop.org/drm/amd/-/issues/5981 on Oct 15.
> 
> I tested them on v7.3. 0002 and 0003 apply cleanly. 0001 doesn’t
> apply, so I ported it by hand with a lot of help from Claude (AI):
> amdgpu_dm_release_irq_stream() is a plain static function placed
> before manage_dm_interrupts(), with no header change and the KUnit
> test left out. The port is attached in case I got something wrong.
> 
> Test: power off the external monitors, wait 60 s, power them on
> again, done 3 times, each from a fresh boot.
> 
> “Sending link address failed with -5”: 2 of 3
> “Step 2 of creating MST payload failed: -5”: 1 of 3
> link_hwss_dpia WARN (line 60 with 0002 applied): 1 of 3
> 
> For comparison, with only 0002+0003 on v7.3 (2 tries) I had the
> “Step 2” error 2 of 2 and the dpia WARN 1 of 2.
> 
> Thanks,
> Paweł
> 
> 
> 

Thanks, it hadn't occurred to me you were the OP for that issue :)

Let's continue to follow up on the gitlab ticket.