linux-kernel - [PATCH v2] regulator: max14577: Fix invalid return value on DT parse success

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Date:	Fri, 21 Feb 2014 13:12:38 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sachin Kamat <sachin.kamat@...aro.org>
Subject: [PATCH v2] regulator: max14577: Fix invalid return value on DT parse
 success

This fixes bug introduced in 667a6b7a (regulator: max14577: Add missing
of_node_put). The DTS parsing function returned number of matched
regulators as success status which then was compared against 0 in probe.

Result was a probe fail after successful parsing the DTS:
max14577-regulator: probe of max14577-regulator failed with error 2

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc: Sachin Kamat <sachin.kamat@...aro.org>
---
 drivers/regulator/max14577.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/max14577.c b/drivers/regulator/max14577.c
index 186df8785a91..e0619526708c 100644
--- a/drivers/regulator/max14577.c
+++ b/drivers/regulator/max14577.c
@@ -166,9 +166,10 @@ static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
 
 	ret = of_regulator_match(&pdev->dev, np, max14577_regulator_matches,
 			MAX14577_REG_MAX);
-	if (ret < 0) {
+	if (ret < 0)
 		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n", ret);
-	}
+	else
+		ret = 0;
 
 	of_node_put(np);
 
-- 
1.7.9.5

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