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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-11-14 13:00:51 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-11-28 02:31:32 +0300 |
| commit | 7518a21a9da39dc605ae08714ad046bfeca26f9b (patch) | |
| tree | 3ca263df64b869349e3de611966038891a871574 /drivers/char/tpm/tpm-sysfs.c | |
| parent | cd9b7631a888f6615dac148c10d72a253b98c64b (diff) | |
| download | linux-7518a21a9da39dc605ae08714ad046bfeca26f9b.tar.xz | |
tpm: drop tpm1_chip_register(/unregister)
Check for TPM2 chip in tpm_sysfs_add_device, tpm_bios_log_setup and
tpm_bios_log_teardown in order to make code flow cleaner and to enable
to implement TPM 2.0 support later on. This is partially derived from
the commit by Nayna Jain with the extension that also tpm1_chip_register
is dropped.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char/tpm/tpm-sysfs.c')
| -rw-r--r-- | drivers/char/tpm/tpm-sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c index 59a1ead4d141..848ad6580b46 100644 --- a/drivers/char/tpm/tpm-sysfs.c +++ b/drivers/char/tpm/tpm-sysfs.c @@ -284,6 +284,9 @@ static const struct attribute_group tpm_dev_group = { void tpm_sysfs_add_device(struct tpm_chip *chip) { + if (chip->flags & TPM_CHIP_FLAG_TPM2) + return; + /* The sysfs routines rely on an implicit tpm_try_get_ops, device_del * is called before ops is null'd and the sysfs core synchronizes this * removal so that no callbacks are running or can run again |