linux-kernel - [PATCH 4.9 327/329] regulator: of: Add a missing of_node_put() in an error handling path of of_regulator

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Message-Id: <20180528100308.238729030@linuxfoundation.org>
Date:   Mon, 28 May 2018 12:04:16 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.9 327/329] regulator: of: Add a missing of_node_put() in an error handling path of of_regulator_match()

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

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

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

[ Upstream commit 30966861a7a2051457be8c49466887d78cc47e97 ]

If an unlikely failure in 'of_get_regulator_init_data()' occurs, we must
release the reference on the current 'child' node before returning.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/regulator/of_regulator.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -282,6 +282,7 @@ int of_regulator_match(struct device *de
 				dev_err(dev,
 					"failed to parse DT for regulator %s\n",
 					child->name);
+				of_node_put(child);
 				return -EINVAL;
 			}
 			match->of_node = of_node_get(child);