Commit 1a892d30 authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Jinjiang Tu
Browse files

ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe 

stable inclusion
from stable-v4.19.238
commit b0c56a0071116a37c24df998166c22a7e4684626
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP3W0
CVE: CVE-2022-49243

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b0c56a0071116a37c24df998166c22a7e4684626



--------------------------------

[ Upstream commit f590797f ]

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function.
Calling of_node_put() to avoid the refcount leak.

Fixes: 531f67e4 ("ASoC: at91sam9g20ek-wm8731: convert to dt support")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Reviewed-by: default avatarCodrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307124539.1743-1-linmq006@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarJinjiang Tu <tujinjiang@huawei.com>
parent 3e8e3ea7

sound/soc/atmel/sam9g20_wm8731.c

+1 −0
Original line number Diff line number Diff line
@@ -225,6 +225,7 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev) 
	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);

	if (!cpu_np) {

		dev_err(&pdev->dev, "dai and pcm info missing\n");

		of_node_put(codec_np);

		return -EINVAL;

	}

	at91sam9g20ek_dai.cpu_of_node = cpu_np;