[PATCH] ASoC: mediatek: mt8183: fix refcount leak in mt8183_mt6358_ts3a227_max98357_dev_probe()

[Wang Yufen]

The node returned by of_parse_phandle() with refcount incremented,
of_node_put() needs be called when finish using it. So add it in the
error path in mt8183_mt6358_ts3a227_max98357_dev_probe().

Fixes: 11c0269017b2 ("ASoC: Mediatek: MT8183: Add machine driver with TS3A227")
Signed-off-by: Wang Yufen <wangyufen at huawei.com>
---
 sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index a860852..48c14be 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -677,8 +677,10 @@ static int mt8183_i2s2_init(struct snd_soc_pcm_runtime *rtd)
 	}
 
 	card = (struct snd_soc_card *)of_device_get_match_data(&pdev->dev);
-	if (!card)
+	if (!card) {
+		of_node_put(platform_node);
 		return -EINVAL;
+	}
 	card->dev = &pdev->dev;
 
 	ec_codec = of_parse_phandle(pdev->dev.of_node, "mediatek,ec-codec", 0);
@@ -767,8 +769,10 @@ static int mt8183_i2s2_init(struct snd_soc_pcm_runtime *rtd)
 	}
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	if (!priv) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	snd_soc_card_set_drvdata(card, priv);
 
@@ -776,7 +780,8 @@ static int mt8183_i2s2_init(struct snd_soc_pcm_runtime *rtd)
 	if (IS_ERR(priv->pinctrl)) {
 		dev_err(&pdev->dev, "%s devm_pinctrl_get failed\n",
 			__func__);
-		return PTR_ERR(priv->pinctrl);
+		ret = PTR_ERR(priv->pinctrl);
+		goto out;
 	}
 
 	for (i = 0; i < PIN_STATE_MAX; i++) {
@@ -809,6 +814,7 @@ static int mt8183_i2s2_init(struct snd_soc_pcm_runtime *rtd)
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);
 
+out:
 	of_node_put(platform_node);
 	of_node_put(ec_codec);
 	of_node_put(hdmi_codec);
-- 
1.8.3.1