From fc6c62cf1cbf24c81ccb1d248120311336d5f3cc Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Thu, 25 Nov 2021 15:16:08 +0800
Subject: [PATCH] ASoC: SOF: mediatek: Add missing of_node_put() in platform_parse_resource()
Git-commit: fc6c62cf1cbf24c81ccb1d248120311336d5f3cc
Patch-mainline: v5.17-rc1
References: jsc#PED-850

The node pointer is returned by of_parse_phandle() with
refcount incremented in platform_parse_resource(). Calling
of_node_put() to aovid the refcount leak.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211125071608.3056715-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/sof/mediatek/mt8195/mt8195.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediatek/mt8195/mt8195.c
index 40e5a25875a6..55d9812870a4 100644
--- a/sound/soc/sof/mediatek/mt8195/mt8195.c
+++ b/sound/soc/sof/mediatek/mt8195/mt8195.c
@@ -43,6 +43,7 @@ static int platform_parse_resource(struct platform_device *pdev, void *data)
 	}
 
 	ret = of_address_to_resource(mem_region, 0, &res);
+	of_node_put(mem_region);
 	if (ret) {
 		dev_err(dev, "of_address_to_resource dma failed\n");
 		return ret;
@@ -64,6 +65,7 @@ static int platform_parse_resource(struct platform_device *pdev, void *data)
 	}
 
 	ret = of_address_to_resource(mem_region, 0, &res);
+	of_node_put(mem_region);
 	if (ret) {
 		dev_err(dev, "of_address_to_resource sysmem failed\n");
 		return ret;
-- 
2.35.3