ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe

[ Upstream commit efe2178d1a32492f99e7f1f2568eea5c88a85729 ]

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Fix refcount leak in some error paths.

Fixes: 0f83f9296d5c ("ASoC: mediatek: Add machine driver for ALC5650 codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220603124243.31358-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
index e168d31..1de9dab 100644 (file)
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
@@ -280,7 +280,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
        if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
                dev_err(&pdev->dev,
                        "Property 'audio-codec' missing or invalid\n");
-               return -EINVAL;
+               ret = -EINVAL;
+               goto put_platform_node;
        }
        mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
                mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;
@@ -293,7 +294,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
                        dev_err(&pdev->dev,
                                "%s codec_capture_dai name fail %d\n",
                                __func__, ret);
-                       return ret;
+                       goto put_platform_node;
                }
                mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
                        codec_capture_dai;
@@ -315,7 +316,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
        if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
                dev_err(&pdev->dev,
                        "Property 'audio-codec' missing or invalid\n");
-               return -EINVAL;
+               ret = -EINVAL;
+               goto put_platform_node;
        }
        card->dev = &pdev->dev;
 
@@ -324,6 +326,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
                        __func__, ret);
 
+put_platform_node:
        of_node_put(platform_node);
        return ret;
 }