regulator: Fix double free in devm_regulator_put()

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/core.c

@@ -1461,9 +1461,7 @@ void devm_regulator_put(struct regulator *regulator)
 
 	rc = devres_release(regulator->dev, devm_regulator_release,
 			    devm_regulator_match, regulator);
-	if (rc == 0)
-		regulator_put(regulator);
-	else
+	if (rc != 0)
 		WARN_ON(rc);
 }
 EXPORT_SYMBOL_GPL(devm_regulator_put);