Dear Matthew,
Am 13.12.19 um 23:57 schrieb Matthew Garrett:
If a TPM is in disabled state, it's reasonable for it to have an empty log. Bailing out of probe in this case means that the PPI interface isn't available, so there's no way to then enable the TPM from the OS. In general it seems reasonable to ignore log errors - they shouldn't itnerfere with any other TPM functionality.
interfere
Can this be tested with QEMU somehow?
Signed-off-by: Matthew Garrett mjg59@google.com Cc: stable@vger.kernel.org
drivers/char/tpm/tpm-chip.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c index 3d6d394a8661..58073836b555 100644 --- a/drivers/char/tpm/tpm-chip.c +++ b/drivers/char/tpm/tpm-chip.c @@ -596,9 +596,7 @@ int tpm_chip_register(struct tpm_chip *chip) tpm_sysfs_add_device(chip);
- rc = tpm_bios_log_setup(chip);
- if (rc != 0 && rc != -ENODEV)
return rc;
- tpm_bios_log_setup(chip);
tpm_add_ppi(chip);
Acked-by: Paul Menzel pmenzel@molgen.mpg.de
Kind regards,
Paul