lkml.org 
[lkml]   [2018]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] tpm: allow TCPA log area to be empty
Date
TCPA log are can be empty when the TPM is disabled. This commit changes the
behavior of tpm_read_log_acpi() to return successfully in this case.

Cc: stable@vger.kernel.org
Fixes: 55a82ab3181b ("[PATCH] tpm: add bios measurement log")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
drivers/char/tpm/tpm_eventlog_acpi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_eventlog_acpi.c b/drivers/char/tpm/tpm_eventlog_acpi.c
index 66f19e93c216..f5f66dcd6f30 100644
--- a/drivers/char/tpm/tpm_eventlog_acpi.c
+++ b/drivers/char/tpm/tpm_eventlog_acpi.c
@@ -84,8 +84,8 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
break;
}
if (!len) {
- dev_warn(&chip->dev, "%s: TCPA log area empty\n", __func__);
- return -EIO;
+ dev_info(&chip->dev, "TCPA log area is empty\n");
+ return 0;
}

/* malloc EventLog space */
--
2.15.1
\
 
 \ /
  Last update: 2018-03-10 17:17    [W:0.077 / U:1.960 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site