From 124512ce59e4f7d2bc5016f011c912af2ede06af Mon Sep 17 00:00:00 2001 From: Shengjiu Wang Date: Tue, 5 Jul 2022 17:50:15 +0800 Subject: [PATCH] ASoC: soc-core: skip zero num_dai component in searching dai name stable inclusion from stable-v5.10.110 commit 460635026801b286e88c6bf96431e3aa4fa56558 bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=460635026801b286e88c6bf96431e3aa4fa56558 -------------------------------- [ 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 : parse error -22 asoc-simple-card: probe of 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 Link: https://lore.kernel.org/r/1644491952-7457-1-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin Signed-off-by: Yu Liao Reviewed-by: Wei Li Signed-off-by: Zheng Zengkai --- 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 133296596864..a6d6d10cd471 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -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); -- GitLab