tpm: acpi: Call acpi_put_table() to fix memory leak
authorHanjun Guo <guohanjun@huawei.com>
Thu, 17 Nov 2022 11:23:40 +0000 (19:23 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 4 Jan 2023 10:29:02 +0000 (11:29 +0100)
commitbf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8
treefec09fc9a2d77b79d249c65bcb6ce054798b8708
parentba2e7d07dd06e646a72ba906a89fdc1cca7ea560
tpm: acpi: Call acpi_put_table() to fix memory leak

commit 8740a12ca2e2959531ad253bac99ada338b33d80 upstream.

The start and length of the event log area are obtained from
TPM2 or TCPA table, so we call acpi_get_table() to get the
ACPI information, but the acpi_get_table() should be coupled with
acpi_put_table() to release the ACPI memory, add the acpi_put_table()
properly to fix the memory leak.

While we are at it, remove the redundant empty line at the
end of the tpm_read_log_acpi().

Fixes: 0bfb23746052 ("tpm: Move eventlog files to a subdirectory")
Fixes: 85467f63a05c ("tpm: Add support for event log pointer found in TPM2 ACPI table")
Cc: stable@vger.kernel.org
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/char/tpm/eventlog/acpi.c