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

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Message-id: <1392909541-10285-1-git-send-email-k.kozlowski@samsung.com>
Date:	Thu, 20 Feb 2014 16:19:01 +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>
Subject: [PATCH] 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>
---
 drivers/regulator/max14577.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/max14577.c b/drivers/regulator/max14577.c
index 186df8785a91..6ba11a8dd23d 100644
--- a/drivers/regulator/max14577.c
+++ b/drivers/regulator/max14577.c
@@ -168,11 +168,13 @@ static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
 			MAX14577_REG_MAX);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n", ret);
+		of_node_put(np);
+		return ret;
 	}
 
 	of_node_put(np);
 
-	return ret;
+	return 0;
 }
 
 static inline struct regulator_init_data *match_init_data(int index)
-- 
1.7.9.5

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