From: Hanjun Guo <guohanjun@huawei.com>
To: Peter Huewe <peterhuewe@gmx.de>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>
Cc: <linux-integrity@vger.kernel.org>, Hanjun Guo <guohanjun@huawei.com>
Subject: [PATCH 1/3] tpm: Put the TCPA table buf after using it
Date: Fri, 17 Jul 2020 19:45:46 +0800 [thread overview]
Message-ID: <1594986348-52258-1-git-send-email-guohanjun@huawei.com> (raw)
The acpi_get_table() should be coupled with acpi_put_table() if
the mapped table is not used for runtime to release the table
mapping, put the TCPA table buf after using it.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
---
drivers/char/tpm/eventlog/acpi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c
index 63ada5e..e8ac30b 100644
--- a/drivers/char/tpm/eventlog/acpi.c
+++ b/drivers/char/tpm/eventlog/acpi.c
@@ -79,6 +79,9 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
start = buff->client.log_start_addr;
break;
}
+
+ acpi_put_table((struct acpi_table_header *)buff);
+
if (!len) {
dev_warn(&chip->dev, "%s: TCPA log area empty\n", __func__);
return -EIO;
--
1.7.12.4
next reply other threads:[~2020-07-17 11:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 11:45 Hanjun Guo [this message]
2020-07-17 11:45 ` [PATCH 2/3] tpm: tpm_crb: Put the TPM2 table after using it Hanjun Guo
2020-07-17 11:45 ` [PATCH 3/3] tpm: tpm_tis: " Hanjun Guo
2020-07-23 3:21 ` [PATCH 1/3] tpm: Put the TCPA table buf " Jarkko Sakkinen
2020-07-23 3:43 ` Hanjun Guo
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