linux-kernel - [PATCH 5.18 0907/1095] ASoC: audio-graph-card2: Add of_node

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Date:   Mon, 15 Aug 2022 20:05:06 +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, Liang He <windhl@....com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 0907/1095] ASoC: audio-graph-card2: Add of_node_put() in fail path

From: Liang He <windhl@....com>

[ Upstream commit 8ebc4dd8250fd1cb5da2869c0fe6ae3686fe41e9 ]

In asoc_simple_parse_dai(), we should call of_node_put() for the
reference returned by of_graph_get_port_parent() in fail path.

Fixes: 6e5f68fe3f2d ("ASoC: add Audio Graph Card2 driver")
Signed-off-by: Liang He <windhl@....com>
Link: https://lore.kernel.org/r/20220722141801.1304854-1-windhl@126.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/generic/audio-graph-card2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index ba3551d9a040..da782403316f 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -445,8 +445,10 @@ static int asoc_simple_parse_dai(struct device_node *ep,
 	 *    if he unbinded CPU or Codec.
 	 */
 	ret = snd_soc_get_dai_name(&args, &dlc->dai_name);
-	if (ret < 0)
+	if (ret < 0) {
+		of_node_put(node);
 		return ret;
+	}
 
 	dlc->of_node = node;
 
-- 
2.35.1