linux-kernel - [PATCH] ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform

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Message-Id: <20220602114529.6303-1-linmq006@gmail.com>
Date:   Thu,  2 Jun 2022 15:45:29 +0400
From:   Miaoqian Lin <linmq006@...il.com>
To:     Cheng-Yi Chiang <cychiang@...omium.org>,
        Tzung-Bi Shih <tzungbi@...gle.com>,
        Guenter Roeck <groeck@...omium.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Benson Leung <bleung@...omium.org>,
        chrome-platform@...ts.linux.dev, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Cc:     linmq006@...il.com
Subject: [PATCH] ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: format:b6bc07d4360d ("ASoC: cros_ec_codec: support WoV")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 sound/soc/codecs/cros_ec_codec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/cros_ec_codec.c b/sound/soc/codecs/cros_ec_codec.c
index 8b0a9c788a26..11e7b3f6d410 100644
--- a/sound/soc/codecs/cros_ec_codec.c
+++ b/sound/soc/codecs/cros_ec_codec.c
@@ -995,6 +995,7 @@ static int cros_ec_codec_platform_probe(struct platform_device *pdev)
 			dev_dbg(dev, "ap_shm_phys_addr=%#llx len=%#x\n",
 				priv->ap_shm_phys_addr, priv->ap_shm_len);
 		}
+		of_node_put(node);
 	}
 #endif
 
-- 
2.25.1