Input: mpr121 - make use of the helper function devm_add_action_or_reset()

The helper function devm_add_action_or_reset() will internally
call devm_add_action(), and if devm_add_action() fails then it will
execute the action mentioned and return the error code. So
use devm_add_action_or_reset() instead of devm_add_action()
to simplify the error handling, reduce the code.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210922125954.533-1-caihuoqing@baidu.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/mpr121_touchkey.c

@@ -107,9 +107,9 @@ static struct regulator *mpr121_vdd_supply_init(struct device *dev)
 		return ERR_PTR(err);
 	}
 
-	err = devm_add_action(dev, mpr121_vdd_supply_disable, vdd_supply);
+	err = devm_add_action_or_reset(dev, mpr121_vdd_supply_disable,
+				       vdd_supply);
 	if (err) {
-		regulator_disable(vdd_supply);
 		dev_err(dev, "failed to add disable regulator action: %d\n",
 			err);
 		return ERR_PTR(err);