regulator: core: Remove redundant checks

In function _regulator_do_set_voltage(), old_selector gets intialised only
if (_regulator_is_enabled(rdev) && rdev->desc->ops->set_voltage_time_sel &&
rdev->desc->ops->get_voltage_sel)) is true.

Before calling set_voltage_time_sel() we checks if (old_selector >= 0) and it
will true if it got intialised properly. so we don't need to check again
_regulator_is_enabled(rdev) && rdev->desc->ops->set_voltage_time_sel before
calling set_voltage_time_sel().

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/core.c

@@ -2439,9 +2439,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 	}
 
 	/* Call set_voltage_time_sel if successfully obtained old_selector */
-	if (ret == 0 && !rdev->constraints->ramp_disable &&
-	    _regulator_is_enabled(rdev) && old_selector >= 0 &&
-	    old_selector != selector && rdev->desc->ops->set_voltage_time_sel) {
+	if (ret == 0 && !rdev->constraints->ramp_disable && old_selector >= 0
+		&& old_selector != selector) {
 
 		delay = rdev->desc->ops->set_voltage_time_sel(rdev,
 						old_selector, selector);