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ASoC: samsung: odroid: Prevent uninitialized variable use

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This addresses an issue pointed out by compiler warning:

sound/soc/samsung/odroid.c: In function ‘odroid_audio_probe’:
sound/soc/samsung/odroid.c:298:22: warning: ‘cpu_dai’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
  priv->clk_i2s_bus = of_clk_get_by_name(cpu_dai, "iis");
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2019-02-21 10:42:28 +01:00 committed by Mark Brown
parent 70b773219a
commit 3af8160028
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1 changed files with 6 additions and 2 deletions
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sound/soc/samsung/odroid.c
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@ -194,7 +194,8 @@ static struct snd_soc_dai_link odroid_card_dais[] = {
static int odroid_audio_probe(struct platform_device *pdev) static int odroid_audio_probe(struct platform_device *pdev)
{ {
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
struct device_node *cpu, *cpu_dai, *codec; struct device_node *cpu_dai = NULL;
struct device_node *cpu, *codec;
struct odroid_priv *priv; struct odroid_priv *priv;
struct snd_soc_card *card; struct snd_soc_card *card;
struct snd_soc_dai_link *link, *codec_link; struct snd_soc_dai_link *link, *codec_link;
@ -271,8 +272,11 @@ static int odroid_audio_probe(struct platform_device *pdev)
if (ret < 0) if (ret < 0)
break; break;
} }
if (ret == 0) if (ret == 0) {
cpu_dai = of_parse_phandle(cpu, "sound-dai", 0); cpu_dai = of_parse_phandle(cpu, "sound-dai", 0);
if (!cpu_dai)
ret = -EINVAL;
}
of_node_put(cpu); of_node_put(cpu);
of_node_put(codec); of_node_put(codec);