ASoC: dmic: Fix check of return value from read of 'num-channels'

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Commit 7fb59e940f ("ASoC: codecs: dmic: Make number of channels
 configurable") introduces an optional property to the device tree
to specify the number of DMIC channels. dmic_codec_probe() uses
of_property_read_u32() to read the DT value, and expects a return
value of -ENOENT when the property does not exist. This expectation
is incorrect, the actual value returned in this case is -EINVAL (see
of_find_property_value_of_size(), which is called under the hood).
Check for -EINVAL instead.

Fixes: 7fb59e940f ("ASoC: codecs: dmic: Make number of channels configurable")
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Matthias Kaehlcke 2018-01-19 15:36:50 -08:00 • committed by Mark Brown

parent 7fb59e940f

commit 35b84bf061

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sound/soc/codecs/dmic.c

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