From: Misono Tomohiro misono.tomohiro@jp.fujitsu.com
[ 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.... Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hwmon/acpi_power_meter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index ba3af4505d8fb..e40d8907853bf 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -895,7 +895,7 @@ 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)) { @@ -908,6 +908,8 @@ 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: