ASoC: Intel: Boards: Fix NULL pointer deref in BYT/CHT boards

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Since commit 13f58267cd ("ASoC: soc.h: don't create dummy Component
via COMP_DUMMY()") dummy snd_soc_dai_link.codecs entries no longer
have a name set.

This means that when looking for the codec dai_link the machine
driver can no longer unconditionally run strcmp() on
snd_soc_dai_link.codecs[0].name since this may now be NULL.

Add a check for snd_soc_dai_link.codecs[0].name being NULL to all
BYT/CHT machine drivers to avoid NULL pointer dereferences in
their probe() methods.

Fixes: 13f58267cd ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()")
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240210134400.24913-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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This commit is contained in:

Hans de Goede 2024-02-10 14:43:59 +01:00 • committed by Mark Brown

parent 727b943263

commit 7d99a70b65

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8 changed files with 16 additions and 8 deletions

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sound/soc/intel/boards/bytcht_cx2072x.c

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sound/soc/intel/boards/bytcht_da7213.c

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sound/soc/intel/boards/bytcht_es8316.c

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sound/soc/intel/boards/bytcr_rt5640.c

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sound/soc/intel/boards/bytcr_rt5651.c

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sound/soc/intel/boards/bytcr_wm5102.c

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sound/soc/intel/boards/cht_bsw_rt5645.c

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sound/soc/intel/boards/cht_bsw_rt5672.c

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