linux-kernel - [PATCH AUTOSEL 4.19 04/14] media: davinci: vpif: add missing of_node_put() in vpif

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Date:   Thu, 11 Aug 2022 12:09:32 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Yang Yingliang <yangyingliang@...wei.com>,
        Hulk Robot <hulkci@...wei.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sasha Levin <sashal@...nel.org>, johan@...nel.org,
        prabhakar.mahadev-lad.rj@...renesas.com, cai.huoqing@...ux.dev,
        linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 04/14] media: davinci: vpif: add missing of_node_put() in vpif_probe()

From: Yang Yingliang <yangyingliang@...wei.com>

[ Upstream commit bb45f5433f23cf103ba29c9692ee553e061f2cb4 ]

of_graph_get_next_endpoint() returns an 'endpoint' node pointer
with refcount incremented. The refcount should be decremented
before returning from vpif_probe().

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/davinci/vpif.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index 00ce9f276bec..750a954689c6 100644
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -450,6 +450,7 @@ static int vpif_probe(struct platform_device *pdev)
 					      endpoint);
 	if (!endpoint)
 		return 0;
+	of_node_put(endpoint);
 
 	/*
 	 * For DT platforms, manually create platform_devices for
-- 
2.35.1