diff options
| author | Jerry Snitselaar <jsnitsel@redhat.com> | 2019-01-30 15:06:58 -0700 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2019-02-13 09:47:01 +0200 |
| commit | 36ce089758b1b55df5854d6b6d74713f609e125d (patch) | |
| tree | 45bd1df16ab47554076866dab97b88bf22a1ddca | |
| parent | 08a8112ad9c17ec3d78363bf7123df6598f09bc2 (diff) | |
tpm: don't return bool from update_timeouts
Set tpm_chip->timeouts_adjusted directly in the update_timeouts
code instead of returning bool. In case of tpm read failing
print warning that the read failed and continue on.
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| -rw-r--r-- | drivers/char/tpm/tpm1-cmd.c | 3 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_tis_core.c | 15 | ||||
| -rw-r--r-- | include/linux/tpm.h | 2 |
3 files changed, 11 insertions, 9 deletions
diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c index 6f306338953b..bda9a16b44f6 100644 --- a/drivers/char/tpm/tpm1-cmd.c +++ b/drivers/char/tpm/tpm1-cmd.c @@ -380,8 +380,7 @@ int tpm1_get_timeouts(struct tpm_chip *chip) * of misreporting. */ if (chip->ops->update_timeouts) - chip->timeout_adjusted = - chip->ops->update_timeouts(chip, timeout_eff); + chip->ops->update_timeouts(chip, timeout_eff); if (!chip->timeout_adjusted) { /* Restore default if chip reported 0 */ diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index bb0c2e160562..c6b0c6d541a5 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -521,35 +521,38 @@ static const struct tis_vendor_timeout_override vendor_timeout_overrides[] = { (TIS_SHORT_TIMEOUT*1000), (TIS_SHORT_TIMEOUT*1000) } }, }; -static bool tpm_tis_update_timeouts(struct tpm_chip *chip, +static void tpm_tis_update_timeouts(struct tpm_chip *chip, unsigned long *timeout_cap) { struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev); int i, rc; u32 did_vid; + chip->timeout_adjusted = false; + if (chip->ops->clk_enable != NULL) chip->ops->clk_enable(chip, true); rc = tpm_tis_read32(priv, TPM_DID_VID(0), &did_vid); - if (rc < 0) + if (rc < 0) { + dev_warn(&chip->dev, "%s: failed to read did_vid: %d\n", + __func__, rc); goto out; + } for (i = 0; i != ARRAY_SIZE(vendor_timeout_overrides); i++) { if (vendor_timeout_overrides[i].did_vid != did_vid) continue; memcpy(timeout_cap, vendor_timeout_overrides[i].timeout_us, sizeof(vendor_timeout_overrides[i].timeout_us)); - rc = true; + chip->timeout_adjusted = true; } - rc = false; - out: if (chip->ops->clk_enable != NULL) chip->ops->clk_enable(chip, false); - return rc; + return; } /* diff --git a/include/linux/tpm.h b/include/linux/tpm.h index b49a55cf775f..13563b8c0c3a 100644 --- a/include/linux/tpm.h +++ b/include/linux/tpm.h @@ -41,7 +41,7 @@ struct tpm_class_ops { int (*send) (struct tpm_chip *chip, u8 *buf, size_t len); void (*cancel) (struct tpm_chip *chip); u8 (*status) (struct tpm_chip *chip); - bool (*update_timeouts)(struct tpm_chip *chip, + void (*update_timeouts)(struct tpm_chip *chip, unsigned long *timeout_cap); int (*go_idle)(struct tpm_chip *chip); int (*cmd_ready)(struct tpm_chip *chip); |