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ASoC: soc-core: skip zero num_dai component in searching dai name

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[ Upstream commit f7d344a2bd5ec81fbd1ce76928fd059e57ec9bea ]

In the case like dmaengine which's not a dai but as a component, the
num_dai is zero, dmaengine component has the same component_of_node
as cpu dai, when cpu dai component is not ready, but dmaengine component
is ready, try to get cpu dai name, the snd_soc_get_dai_name() return
-EINVAL, not -EPROBE_DEFER, that cause below error:

asoc-simple-card <card name>: parse error -22
asoc-simple-card: probe of <card name> failed with error -22

The sound card failed to probe.

So this patch fixes the issue above by skipping the zero num_dai
component in searching dai name.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1644491952-7457-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shengjiu Wang 2022-02-10 19:19:12 +08:00 committed by Greg Kroah-Hartman
parent a840fc067e
commit 4606350268
1 changed files with 1 additions and 1 deletions
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2
sound/soc/soc-core.c
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@ -3020,7 +3020,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args,
for_each_component(pos) {
component_of_node = soc_component_to_node(pos);
if (component_of_node != args->np)
if (component_of_node != args->np || !pos->num_dai)
continue;
ret = snd_soc_component_of_xlate_dai_name(pos, args, dai_name);