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ASoC: core: check of_property_count_strings failure

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commit c34ce320d9fe328e3272def20b152f39ccfa045e upstream.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Zhao 2012-04-24 15:24:43 +08:00 committed by Greg Kroah-Hartman
parent e7bcb4bafa
commit 35cdf78c44
1 changed files with 3 additions and 3 deletions
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6
sound/soc/soc-core.c
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@ -3420,10 +3420,10 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
int i, ret;
num_routes = of_property_count_strings(np, propname);
if (num_routes & 1) {
if (num_routes < 0 || num_routes & 1) {
dev_err(card->dev,
"Property '%s's length is not even\n",
propname);
"Property '%s' does not exist or its length is not even\n",
propname);
return -EINVAL;
}
num_routes /= 2;