diff options
| author | Lenny Szubowicz <lszubowi@redhat.com> | 2018-03-27 09:56:40 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:47:40 +0200 |
| commit | c893df8b44bb2c18f6875c918f3d3b778c195fe3 (patch) | |
| tree | 72fc0d2cfac4debed8fa3fea540c00d416bac19d | |
| parent | 6ba54321af564567b7e714a4baac95b95be57a72 (diff) | |
ACPI: acpi_pad: Fix memory leak in power saving threads
[ Upstream commit 8b29d29abc484d638213dd79a18a95ae7e5bb402 ]
Fix once per second (round_robin_time) memory leak of about 1 KB in
each acpi_pad kernel idling thread that is activated.
Found by testing with kmemleak.
Signed-off-by: Lenny Szubowicz <lszubowi@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/acpi/acpi_pad.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index f148a0580e040..970f9543e65de 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -117,6 +117,7 @@ static void round_robin_cpu(unsigned int tsk_index) cpumask_andnot(tmp, cpu_online_mask, pad_busy_cpus); if (cpumask_empty(tmp)) { mutex_unlock(&round_robin_lock); + free_cpumask_var(tmp); return; } for_each_cpu(cpu, tmp) { @@ -134,6 +135,8 @@ static void round_robin_cpu(unsigned int tsk_index) mutex_unlock(&round_robin_lock); set_cpus_allowed_ptr(current, cpumask_of(preferred_cpu)); + + free_cpumask_var(tmp); } static void exit_round_robin(unsigned int tsk_index) |