diff options
| author | Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> | 2020-06-25 13:32:42 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-09 09:37:53 +0200 |
| commit | c9426817eac7fffc7561c080e135c516aa5c8a65 (patch) | |
| tree | 91fba6b7f8ed980a18ce85b864a330b6381855b8 | |
| parent | 3e7bd7e10639dbf02892d3b0ee0bc6ff45c601d4 (diff) | |
hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add()
[ Upstream commit 8b97f9922211c44a739c5cbd9502ecbb9f17f6d1 ]
Although it rarely happens, we should call free_capabilities()
if error happens after read_capabilities() to free allocated strings.
Fixes: de584afa5e188 ("hwmon driver for ACPI 4.0 power meters")
Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Link: https://lore.kernel.org/r/20200625043242.31175-1-misono.tomohiro@jp.fujitsu.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/hwmon/acpi_power_meter.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 4cf25458f0b9..740ac0a1b726 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -883,7 +883,7 @@ static int acpi_power_meter_add(struct acpi_device *device) res = setup_attrs(resource); if (res) - goto exit_free; + goto exit_free_capability; resource->hwmon_dev = hwmon_device_register(&device->dev); if (IS_ERR(resource->hwmon_dev)) { @@ -896,6 +896,8 @@ static int acpi_power_meter_add(struct acpi_device *device) exit_remove: remove_attrs(resource); +exit_free_capability: + free_capabilities(resource); exit_free: kfree(resource); exit: |