The patch regulator: max8997: clean up a condition in max8997_list_voltage()
has been applied to the regulator tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 1aa1b918946537c089716bffd1399e30a2981cb7 Mon Sep 17 00:00:00 2001 From: Dan Carpenter <[email protected]> Date: Fri, 6 Jul 2018 11:37:18 +0300 Subject: [PATCH] regulator: max8997: clean up a condition in max8997_list_voltage() The current code generates a static cehcker warnings because "rid < 0" is always false: drivers/regulator/max8997-regulator.c:169 max8997_list_voltage() warn: condition is always false The problem is that because of type promotion, if "rid" is negative the comparison against ARRAY_SIZE() is type promoted to size_t and it's treated as a very high positive value. I've changed the order of the checks so now everyone is happy. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Mark Brown <[email protected]> --- drivers/regulator/max8997-regulator.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/regulator/max8997-regulator.c b/drivers/regulator/max8997-regulator.c index a8ea30ee18a6..029a6ee426ab 100644 --- a/drivers/regulator/max8997-regulator.c +++ b/drivers/regulator/max8997-regulator.c @@ -165,8 +165,7 @@ static int max8997_list_voltage(struct regulator_dev *rdev, int rid = rdev_get_id(rdev); int val; - if (rid >= ARRAY_SIZE(reg_voltage_map) || - rid < 0) + if (rid < 0 || rid >= ARRAY_SIZE(reg_voltage_map)) return -EINVAL; desc = reg_voltage_map[rid]; -- 2.18.0.rc2
