On Wed, Jun 09, 2021 at 04:26:19PM +0300, Jarkko Sakkinen wrote:

Do not tear down the system when getting invalid status from a TPM chip.
This can happen when panic-on-warn is used.

Instead, introduce TPM_TIS_INVALID_STATUS bitflag and use it to trigger
once the error reporting per chip. In addition, print out the value of
TPM_STS for improved forensics.

Link: https://lore.kernel.org/keyrings/YKzlTR1AzUigShtZ@kroah.com/ (local)
Fixes: 55707d531af6 ("tpm_tis: Add a check for invalid status")
Cc: stable@vger.kernel.org
Cc: Hans de Goede <redacted>
Cc: Greg KH <redacted>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>