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ASoC: audio-graph-card: fix refcount leak of cpu_ep in __graph_for_each_link() 

The of_get_next_child() returns a node with refcount incremented, and
decrements the refcount of prev. So in the error path of the while loop,
of_node_put() needs be called for cpu_ep.

Fixes: fce9b90c1a ("ASoC: audio-graph-card: cleanup DAI link loop method - step2")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1670228127-13835-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Wang Yufen 2022-12-05 16:15:27 +08:00 committed by Mark Brown
parent 3327d72111
commit 8ab2d12c72
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1 changed files with 3 additions and 1 deletions
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4
sound/soc/generic/audio-graph-card.c
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@ -485,8 +485,10 @@ static int __graph_for_each_link(struct asoc_simple_priv *priv,
of_node_put(codec_ep);
of_node_put(codec_port);
if (ret < 0)
if (ret < 0) {
of_node_put(cpu_ep);
return ret;
}
codec_port_old = codec_port;
}