diff options
| -rw-r--r-- | drivers/char/tpm/tpm_tis_core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index 5b01a3df65a6..c2421162cf34 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -793,10 +793,15 @@ static void tpm_tis_gen_interrupt(struct tpm_chip *chip) cap_t cap; int ret; + chip->flags |= TPM_CHIP_FLAG_IRQ; + if (chip->flags & TPM_CHIP_FLAG_TPM2) ret = tpm2_get_tpm_pt(chip, 0x100, &cap2, desc); else ret = tpm1_getcap(chip, TPM_CAP_PROP_TIS_TIMEOUT, &cap, desc, 0); + + if (ret) + chip->flags &= ~TPM_CHIP_FLAG_IRQ; } /* Register the IRQ and issue a command that will cause an interrupt. If an |