linux-kernel - [PATCH] regulator: 88pm800: Fix checking whether num

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Message-ID: <1375579408.3588.1.camel@phoenix>
Date:	Sun, 04 Aug 2013 09:23:28 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	"Joseph(Yossi) Hanin" <yhanin@...vell.com>,
	Yi Zhang <yizhang@...vell.com>,
	Chao Xie <chao.xie@...vell.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] regulator: 88pm800: Fix checking whether num_regulator is
 valid

The code to check whether num_regulator is valid is wrong because it should
iterate all array entries rather than break from the for loop if
pdata->regulators[i] is NULL.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/regulator/88pm800.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c
index c72fe95..58e9b74 100644
--- a/drivers/regulator/88pm800.c
+++ b/drivers/regulator/88pm800.c
@@ -299,10 +299,13 @@ static int pm800_regulator_probe(struct platform_device *pdev)
 			return -ENODEV;
 		}
 	} else if (pdata->num_regulators) {
-		/* Check whether num_regulator is valid. */
 		unsigned int count = 0;
-		for (i = 0; pdata->regulators[i]; i++)
-			count++;
+
+		/* Check whether num_regulator is valid. */
+		for (i = 0; ARRAY_SIZE(pdata->regulators); i++) {
+			if (pdata->regulators[i])
+				count++;
+		}
 		if (count != pdata->num_regulators)
 			return -EINVAL;
 	} else {
-- 
1.8.1.2



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