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path: root/drivers/char/tpm/tpm-interface.c
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Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
-rw-r--r--drivers/char/tpm/tpm-interface.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index c43a9e28995e..e32f6e85dc6d 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -489,7 +489,7 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip,
goto out;
}
- tpm_msleep(TPM_TIMEOUT);
+ tpm_msleep(TPM_TIMEOUT_POLL);
rmb();
} while (time_before(jiffies, stop));
@@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
*/
if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST)
break;
- delay_msec *= 2;
+
if (delay_msec > TPM2_DURATION_LONG) {
if (rc == TPM2_RC_RETRY)
dev_err(&chip->dev, "in retry loop\n");
@@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
break;
}
tpm_msleep(delay_msec);
+ delay_msec *= 2;
memcpy(buf, save, save_size);
}
return ret;