Re: [PATCH v2] cxl/pci: Fix NULL pointer dereference in reset detection

在 2026/8/12 15:38, Richard Cheng 写道:
> Hi Guixin,
>
> I think we should cover the case for DVSEC-enulated decoder as well, where hdm is not NULL.
> That could happen when HDM registers exist but are globally disabled, so the driver uses DVSEC ranges instead.
>
> In that case it will still pass your "if (!hdm)" check and reset detection still reads the unused HDM COMMITTED bit.
>
> Maybe we should also check for "!cxld->commit" ?
>
> Best regards,
> Richard Cheng.
Yes, and just "!cxld->commit" is ok, this cover "!hdm". Best Regards, 
Guixin Liu