UPSTREAM: regulator: Remove unneded check for regulator supply

The regulator_resolve_supply() function checks if a supply has been
associated with a regulator to avoid enabling it if that is not the
case.

But the supply was already looked up with regulator_resolve_supply()
and set with set_supply() before the check and both return on error.

So the fact that this statement has been reached means that neither
of them failed and a supply must be associated with the regulator.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 95a293c7ba17253b8cffcacbdd716ebfbfe42587)

Change-Id: Ib4738ae3f733256a2ba794543430ffde2c434352
Signed-off-by: David Wu <david.wu@rock-chips.com>

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a03d79907074ca74b75a3aee73c69c74970dd3a2..f28fca4b68e34cccb7ec025fb662d3d40ce6d6d5 100644 (file)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1530,7 +1530,7 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
        }
 
        /* Cascade always-on state to supply */
-       if (_regulator_is_enabled(rdev) && rdev->supply) {
+       if (_regulator_is_enabled(rdev)) {
                ret = regulator_enable(rdev->supply);
                if (ret < 0) {
                        _regulator_put(rdev->supply);