Messages in this thread Patch in this message | | | From | LinoSanfilippo@gmx ... | Subject | [PATCH v5 10/10] tpm, tpm_tis: Enable interrupt test | Date | Fri, 10 Jun 2022 13:08:46 +0200 |
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From: Lino Sanfilippo <l.sanfilippo@kunbus.com>
The test for interrupts in tpm_tis_send() is skipped if the flag TPM_CHIP_FLAG_IRQ is not set. Since the current code never sets the flag initially the test is never executed.
Fix this by setting the flag in tpm_tis_gen_interrupt() right after interrupts have been enabled.
Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com> --- drivers/char/tpm/tpm_tis_core.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index e5edf745fb23..be229c173f10 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -774,11 +774,16 @@ static int tpm_tis_gen_interrupt(struct tpm_chip *chip) if (ret < 0) return 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; + release_locality(chip, 0); return ret; -- 2.36.1
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