linux-kernel - [ 33/83] regulator: fix voltage check in regulator_is_supported

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Message-Id: <20121122004216.304672471@linuxfoundation.org>
Date:	Wed, 21 Nov 2012 16:41:55 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [ 33/83] regulator: fix voltage check in regulator_is_supported_voltage()

3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marek Szyprowski <m.szyprowski@...sung.com>

commit f0f98b19e23d4426ca185e3d4ca80e6aff5ef51b upstream.

regulator_is_supported_voltage() should return true only if the voltage
of fixed/constant regulator is between min_uV and max_uV.

Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/regulator/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1942,7 +1942,7 @@ int regulator_is_supported_voltage(struc
 	if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
 		ret = regulator_get_voltage(regulator);
 		if (ret >= 0)
-			return (min_uV >= ret && ret <= max_uV);
+			return (min_uV <= ret && ret <= max_uV);
 		else
 			return ret;
 	}


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