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ASoC: samsung: aries_audio_probe: double of_node_put due to direct assignment without of_node_get

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In aries_audio_probe(), aries_dai[0].platforms->of_node is assigned the
same pointer as aries_dai[0].cpus->of_node (from of_parse_phandle)
without calling of_node_get(). When the sound card is deregistered, the
ASoC framework calls of_node_put() on both cpus->of_node and
platforms->of_node, causing a double put on the same node and a refcount
underflow.

Add of_node_get(aries_dai[0].cpus->of_node) before the assignment.

Cc: stable@vger.kernel.org
Fixes: 7a3a7671fa ("ASoC: samsung: Add driver for Aries boards")
Signed-off-by: WenTao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20260627035251.60172-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
WenTao Liang 2026-06-27 11:52:51 +08:00 committed by Mark Brown
parent e487b00d70
commit fb5d1b1c5f
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sound/soc/samsung/aries_wm8994.c
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@ -658,6 +658,7 @@ static int aries_audio_probe(struct platform_device *pdev)
goto out;
}
of_node_get(aries_dai[0].cpus->of_node);
aries_dai[0].platforms->of_node = aries_dai[0].cpus->of_node;
/* Set CPU of_node for BT DAI */