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ASoC: soc-core: protect dlc->of_node under mutex 

dlc->of_node will be set on snd_soc_get_dlc(), but we want
1) protect it by mutex, 2) set only when successed.
This patch do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/878rc1kerv.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2023-06-29 23:52:20 +00:00 committed by Mark Brown
parent 82770b76ab
commit 065aa861b1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
sound/soc/soc-core.c
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@ -3278,8 +3278,6 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_
struct snd_soc_component *pos;
int ret = -EPROBE_DEFER;
dlc->of_node = args->np;
mutex_lock(&client_mutex);
for_each_component(pos) {
struct device_node *component_of_node = soc_component_to_node(pos);
@ -3333,6 +3331,10 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_
break;
}
if (ret == 0)
dlc->of_node = args->np;
mutex_unlock(&client_mutex);
return ret;
}