ASoC: mt6797-mt6351: Fix refcount leak in mt6797_mt6351_dev_probe

[ Upstream commit 7472eb8d7dd12b6b9b1a4f4527719cc9c7f5965f ]

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: f0ab0bf250da ("ASoC: add mt6797-mt6351 driver and config option")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220603083417.9011-1-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/mt6797/mt6797-mt6351.c b/sound/soc/mediatek/mt6797/mt6797-mt6351.c
index b1558c57b9ca7afd37230ab6a7e0fd728d0296d1..0c49e1a9a897155f598064af0f3ebaf2a13e06a8 100644 (file)
--- a/sound/soc/mediatek/mt6797/mt6797-mt6351.c
+++ b/sound/soc/mediatek/mt6797/mt6797-mt6351.c
@@ -179,7 +179,8 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
        if (!codec_node) {
                dev_err(&pdev->dev,
                        "Property 'audio-codec' missing or invalid\n");
-               return -EINVAL;
+               ret = -EINVAL;
+               goto put_platform_node;
        }
        for (i = 0; i < card->num_links; i++) {
                if (mt6797_mt6351_dai_links[i].codec_name)
@@ -192,6 +193,9 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
                        __func__, ret);
 
+       of_node_put(codec_node);
+put_platform_node:
+       of_node_put(platform_node);
        return ret;
 }