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>
Thu, 12 Jan 2023 10:58:48 +0000 (11:58 +0100)
commit638cd298dfebce46919cbd6cf1884701215f506d
tree90dc0be4345aa5bb4a934e73c14425044dc45055
parentd58289fc77f8c1f879c818bddaf7ef524c73658b
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