ASoC: pcm3008: Check for platform data

The driver will crash if none is provided.

Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c
index 8ab1c03..4fa4ded 100644 (file)
--- a/sound/soc/codecs/pcm3008.c
+++ b/sound/soc/codecs/pcm3008.c
@@ -92,6 +92,9 @@ static int pcm3008_codec_probe(struct platform_device *pdev)
        struct pcm3008_setup_data *setup = pdev->dev.platform_data;
        int ret;
 
+       if (!setup)
+               return -EINVAL;
+
        /* DEM1  DEM0  DE-EMPHASIS_MODE
         * Low   Low   De-emphasis 44.1 kHz ON
         * Low   High  De-emphasis OFF