From: Shengjiu Wang shengjiu.wang@nxp.com

[ 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... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/soc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index dcf6be4c4aaa..0dc89f568407 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3184,7 +3184,7 @@ int snd_soc_get_dai_name(const struct of_phandle_args *args, for_each_component(pos) { struct device_node *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);