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ASoC: soc-core.c: Skip dummy codec when adding platforms 

[ Upstream commit 23fb6bc269 ]

When pcm_runtime is adding platform components it will scan all
registered components. In case of DPCM FE/BE some DAI links will
configure dummy platform. However both dummy codec and dummy platform
are using "snd-soc-dummy" as component->name. Dummy codec should be
skipped when adding platforms otherwise there'll be overflow and UBSAN
complains.

Reported-by: Zhipeng Wang <zhipeng.wang_1@nxp.com>
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Link: https://msgid.link/r/20240305065606.3778642-1-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chancel Liu 2024-03-05 15:56:06 +09:00 committed by Greg Kroah-Hartman
parent 103c0f946f
commit 8b849265da
1 changed files with 3 additions and 0 deletions
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3
sound/soc/soc-core.c
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@ -1020,6 +1020,9 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card,
if (!snd_soc_is_matching_component(platform, component))
continue;
if (snd_soc_component_is_dummy(component) && component->num_dai)
continue;
snd_soc_rtd_add_component(rtd, component);
}
}