Regression on linux-next (next-20250210)

[Borah, Chaitanya Kumar]

Hello Andy,

Hope you are doing well. I am Chaitanya from the linux graphics team in Intel.

This mail is regarding a regression we are seeing in our CI runs[1] on linux-next repository.

Since the version next-20250210 [2], many machines in our CI are unable to boot.

Unfortunately, we have  not been able to collect any logs (even from pstore).

However after bisecting the tree, the following patch [3] seems to be the first "bad"
commit

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commit bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f
Author: Andy Shevchenko mailto:andriy.shevchenko at linux.intel.com
Date:   Mon Feb 3 14:14:56 2025 +0200

    serial: 8250_dw: Drop unneeded NULL checks in dw8250_quirks()

    Since platform data is being provided for all supported hardware,
    no need to NULL check for it. Drop unneeded checks.

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We also verified that if we revert the patch the issue is not seen.

Could you please check why the patch causes this regression and provide a fix if necessary?

Thank you.

Regards

Chaitanya

[1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html?
[2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250210
[3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250210&id=bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f