ASoC: core: check of_property_count_strings failure
Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
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@ -3631,10 +3631,10 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
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int i, ret;
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num_routes = of_property_count_strings(np, propname);
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if (num_routes & 1) {
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if (num_routes < 0 || num_routes & 1) {
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dev_err(card->dev,
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"Property '%s's length is not even\n",
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propname);
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"Property '%s' does not exist or its length is not even\n",
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propname);
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return -EINVAL;
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}
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num_routes /= 2;
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