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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2018-11-04 20:01:42 +0200 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2019-02-13 09:48:28 +0200 |
| commit | 2f257402ee981720d65080b1e3ce19f693f5c9c3 (patch) | |
| tree | b4617b3fdc6682ba129f4f46bc8c21308d912030 /drivers/char/tpm/tpm-interface.c | |
| parent | 2677ca98ae377517930c183248221f69f771c921 (diff) | |
| download | linux-2f257402ee981720d65080b1e3ce19f693f5c9c3.tar.gz linux-2f257402ee981720d65080b1e3ce19f693f5c9c3.tar.bz2 linux-2f257402ee981720d65080b1e3ce19f693f5c9c3.zip | |
tpm: remove TPM_TRANSMIT_UNLOCKED flag
Added locking as part of tpm_try_get_ops() and tpm_put_ops() as they are
anyway used in most of the call sites except in tpmrm_release() where we
take the locks manually.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 5acbef8cf2ce..54a15f59e175 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -236,10 +236,6 @@ ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz, memcpy(save, buf, save_size); for (;;) { - if (!(flags & TPM_TRANSMIT_UNLOCKED) && - !(flags & TPM_TRANSMIT_NESTED)) - mutex_lock(&chip->tpm_mutex); - if (chip->ops->clk_enable != NULL) chip->ops->clk_enable(chip, true); @@ -266,10 +262,6 @@ out_locality: if (chip->ops->clk_enable != NULL) chip->ops->clk_enable(chip, false); - if (!(flags & TPM_TRANSMIT_UNLOCKED) && - !(flags & TPM_TRANSMIT_NESTED)) - mutex_unlock(&chip->tpm_mutex); - if (ret < 0) break; rc = be32_to_cpu(header->return_code); |