diff options
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index ffdae1daa138..ef0fcdb40cc3 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -501,6 +501,9 @@ int tpm_get_timeouts(struct tpm_chip *chip) unsigned long old_timeout[4]; ssize_t rc; + if (chip->flags & TPM_CHIP_FLAG_HAVE_TIMEOUTS) + return 0; + if (chip->flags & TPM_CHIP_FLAG_TPM2) { /* Fixed timeouts for TPM2 */ chip->timeout_a = msecs_to_jiffies(TPM2_TIMEOUT_A); @@ -513,6 +516,8 @@ int tpm_get_timeouts(struct tpm_chip *chip) msecs_to_jiffies(TPM2_DURATION_MEDIUM); chip->duration[TPM_LONG] = msecs_to_jiffies(TPM2_DURATION_LONG); + + chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS; return 0; } @@ -596,6 +601,8 @@ int tpm_get_timeouts(struct tpm_chip *chip) chip->duration_adjusted = true; dev_info(&chip->dev, "Adjusting TPM timeout parameters."); } + + chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS; return 0; } EXPORT_SYMBOL_GPL(tpm_get_timeouts); |