Re: [PATCH] tpm: Remove dead NULL check in tpm2_flush_space()

From: Gunnar Kudrjavets

Date: Mon Apr 27 2026 - 18:57:42 EST


On Sun, Apr 27, 2026 at 10:49 PM Paul Menzel <pmenzel@xxxxxxxxxxxxx> wrote:
> gemini/gemini-3.1-pro-preview made a comment [1]. No idea, if it's valid.

Thanks for forwarding, Paul. AFAICS, the comment is a false positive.

My theory is that Gemini conflates two different variables named
'space':

1. The 'space' parameter passed to tpm_dev_transmit(). This *can* be
NULL (it is NULL for /dev/tpm0 clients).

2. The local 'space' variable inside tpm2_flush_space(). This is
assigned from &chip->work_space and can *never* be NULL.

The removed NULL check was testing case (2), not case (1).

Regards,
Gunnar