ASoC: Return proper error if snd_soc_register_dais fails in psc_i2s_of_probe

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/fsl/mpc5200_psc_i2s.c

@@ -160,7 +160,7 @@ static int __devinit psc_i2s_of_probe(struct platform_device *op,
 	rc = snd_soc_register_dais(&op->dev, psc_i2s_dai, ARRAY_SIZE(psc_i2s_dai));
 	if (rc != 0) {
 		pr_err("Failed to register DAI\n");
-		return 0;
+		return rc;
 	}
 
 	psc_dma = dev_get_drvdata(&op->dev);