linux-kernel - [PATCH 5.16 0372/1017] ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio

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Message-Id: <20220405070405.328164771@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:21:25 +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, Miaoqian Lin <linmq006@...il.com>,
        Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0372/1017] ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe

From: Miaoqian Lin <linmq006@...il.com>

[ Upstream commit f590797fa3c1bccdd19e55441592a23b46aef449 ]

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function.
Calling of_node_put() to avoid the refcount leak.

Fixes: 531f67e41dcd ("ASoC: at91sam9g20ek-wm8731: convert to dt support")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
Link: https://lore.kernel.org/r/20220307124539.1743-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/atmel/sam9g20_wm8731.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index 915da92e1ec8..33e43013ff77 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -214,6 +214,7 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
 	if (!cpu_np) {
 		dev_err(&pdev->dev, "dai and pcm info missing\n");
+		of_node_put(codec_np);
 		return -EINVAL;
 	}
 	at91sam9g20ek_dai.cpus->of_node = cpu_np;
-- 
2.34.1