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| author | Lv Zheng <lv.zheng@intel.com> | 2014-04-04 12:38:50 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-04-20 22:59:39 +0200 |
| commit | eb0c65bd2c276b4b346db545d938d4113e1a4e9c (patch) | |
| tree | 9e08a70553f2f9d459eacf4491e45874e7b79669 /drivers/acpi | |
| parent | 7f9fc99cde939187c1ee6dac115bdb76655cc798 (diff) | |
| download | linux-0-day-eb0c65bd2c276b4b346db545d938d4113e1a4e9c.tar.gz linux-0-day-eb0c65bd2c276b4b346db545d938d4113e1a4e9c.tar.xz | |
ACPICA: Tables: Fix unbalanced table validations.
As acpi_tb_validate_table() returns failure on checksum verification without
doing invalidatation, all its invocations that are not done to a descriptor
stored in acpi_gbl_root_table_list are checked and balanced.
But this is not a real issue as the descritors that have been passed to
acpi_tb_add_table() are all virtual address tables and the validations are in
fact no-op. The cleanup can ensure that any future extensions made on
acpi_tb_add_table() to allow it to be invoked with physical address tables
will not trigger memory leakage regressions.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/tbinstal.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 93a99ef034258..d3e1db225cb2d 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -236,6 +236,7 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) if (!table_desc->pointer) { status = acpi_tb_validate_table(table_desc); if (ACPI_FAILURE(status) || !table_desc->pointer) { + acpi_tb_invalidate_table(table_desc); return_ACPI_STATUS(status); } } |