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ASoC: dmic: Fix check of return value from read of 'num-channels'
Commit7fb59e940f
("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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7fb59e940f
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1 changed files with 1 additions and 1 deletions
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@ -113,7 +113,7 @@ static int dmic_dev_probe(struct platform_device *pdev)
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if (pdev->dev.of_node) {
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err = of_property_read_u32(pdev->dev.of_node, "num-channels", &chans);
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if (err && (err != -ENOENT))
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if (err && (err != -EINVAL))
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return err;
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if (!err) {
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