ASoC: core: Fix deadlock in snd_soc_instantiate_card()
Move the client_mutex lock to snd_soc_unbind_card() before
removing link components. This prevents the deadlock
in the error path in snd_soc_instantiate_card().
Fixes: 34ac3c3eb8
(ASoC: core: lock client_mutex while removing
link components)
Reported-by: kernelci.org bot <bot@kernelci.org>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Родитель
04268bf275
Коммит
495f926c68
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@ -1008,14 +1008,12 @@ static void soc_remove_link_components(struct snd_soc_card *card,
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struct snd_soc_component *component;
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struct snd_soc_component *component;
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struct snd_soc_rtdcom_list *rtdcom;
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struct snd_soc_rtdcom_list *rtdcom;
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mutex_lock(&client_mutex);
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for_each_rtdcom(rtd, rtdcom) {
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for_each_rtdcom(rtd, rtdcom) {
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component = rtdcom->component;
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component = rtdcom->component;
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if (component->driver->remove_order == order)
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if (component->driver->remove_order == order)
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soc_remove_component(component);
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soc_remove_component(component);
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}
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}
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mutex_unlock(&client_mutex);
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}
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}
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static void soc_remove_dai_links(struct snd_soc_card *card)
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static void soc_remove_dai_links(struct snd_soc_card *card)
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@ -2839,12 +2837,14 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
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snd_soc_dapm_shutdown(card);
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snd_soc_dapm_shutdown(card);
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snd_soc_flush_all_delayed_work(card);
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snd_soc_flush_all_delayed_work(card);
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mutex_lock(&client_mutex);
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/* remove all components used by DAI links on this card */
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/* remove all components used by DAI links on this card */
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for_each_comp_order(order) {
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for_each_comp_order(order) {
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for_each_card_rtds(card, rtd) {
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for_each_card_rtds(card, rtd) {
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soc_remove_link_components(card, rtd, order);
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soc_remove_link_components(card, rtd, order);
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}
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}
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}
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}
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mutex_unlock(&client_mutex);
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soc_cleanup_card_resources(card);
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soc_cleanup_card_resources(card);
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if (!unregister)
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if (!unregister)
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