iio: imu: mpu6050: Replace devm_add_action() followed by failure action with devm_add...

devm_add_action_or_reset() is introduced as a helper function which
internally calls devm_add_action(). If devm_add_action() fails
then it will execute the action mentioned and return the error code.
This reduce source code size (avoid writing the action twice)
and reduce the likelyhood of bugs.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 53a5995..e067927 100644 (file)
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -1096,10 +1096,9 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
        if (result)
                return result;
 
-       result = devm_add_action(dev, inv_mpu_core_disable_regulator_action,
+       result = devm_add_action_or_reset(dev, inv_mpu_core_disable_regulator_action,
                                 st);
        if (result) {
-               inv_mpu_core_disable_regulator_action(st);
                dev_err(dev, "Failed to setup regulator cleanup action %d\n",
                        result);
                return result;