ASoC: Samsung: return error if drvdata is not set

This patch fixes a possible crash in case drvdata for the secondary
device is not set.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index d7231e3..f1fc064 100644 (file)
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1107,6 +1107,10 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 
        if (samsung_dai_type == TYPE_SEC) {
                sec_dai = dev_get_drvdata(&pdev->dev);
+               if (!sec_dai) {
+                       dev_err(&pdev->dev, "Unable to get drvdata\n");
+                       return -EFAULT;
+               }
                snd_soc_register_dai(&sec_dai->pdev->dev,
                        &sec_dai->i2s_dai_drv);
                asoc_dma_platform_register(&pdev->dev);