linux-kernel - [PATCH 1/2] regulator: ad5398: Fix min/max current limit boundary checking

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Date:	Tue, 03 Jul 2012 11:01:13 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org, Sonic Zhang <sonic.zhang@...log.com>,
	Lars-Peter Clausen <lars@...afoo.de>
Subject: [PATCH 1/2] regulator: ad5398: Fix min/max current limit boundary
 checking

It is ok to request current limit with min_uA < chip->min_uA and
max_uA > chip->max_uA.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/ad5398.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
index 46d05f3..6a357dc 100644
--- a/drivers/regulator/ad5398.c
+++ b/drivers/regulator/ad5398.c
@@ -89,9 +89,7 @@ static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int
 	unsigned short data;
 	int ret;
 
-	if (min_uA > chip->max_uA || min_uA < chip->min_uA)
-		return -EINVAL;
-	if (max_uA > chip->max_uA || max_uA < chip->min_uA)
+	if (min_uA > chip->max_uA || max_uA < chip->min_uA)
 		return -EINVAL;
 
 	selector = DIV_ROUND_UP((min_uA - chip->min_uA) * chip->current_level,
-- 
1.7.9.5



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