regulator, mc13xxx: Remove pointless test for unsigned less than zero
authorJesper Juhl <jj@chaosbits.net>
Wed, 23 Feb 2011 22:45:55 +0000 (23:45 +0100)
committerLiam Girdwood <lrg@slimlogic.co.uk>
Fri, 25 Feb 2011 08:51:07 +0000 (08:51 +0000)
The variable 'val' is a 'unsigned int', so it can never be less than zero.
This fact makes the "val < 0" part of the test done in BUG_ON() in
mc13xxx_regulator_get_voltage() rather pointles since it can never have
any effect.
This patch removes the pointless test.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
drivers/regulator/mc13xxx-regulator-core.c

index f53d31b..2bb5de1 100644 (file)
@@ -174,7 +174,7 @@ static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
 
        dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
 
-       BUG_ON(val < 0 || val > mc13xxx_regulators[id].desc.n_voltages);
+       BUG_ON(val > mc13xxx_regulators[id].desc.n_voltages);
 
        return mc13xxx_regulators[id].voltages[val];
 }