ASoC: Minor fixes to DaVinci I2S probe function

Assign proper errors when platform resource claims fail.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/davinci/davinci-i2s.c

@@ -469,7 +469,7 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	struct snd_platform_data *pdata = pdev->dev.platform_data;
 	struct davinci_mcbsp_dev *dev;
 	struct resource *mem, *ioarea, *res;
-	int ret = 0;
+	int ret;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!mem) {
@@ -511,13 +511,15 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "no DMA resource\n");
+		ret = -ENXIO;
 		goto err_free_mem;
 	}
 	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK]->channel = res->start;
 
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
 	if (!res) {
 		dev_err(&pdev->dev, "no DMA resource\n");
+		ret = -ENXIO;
 		goto err_free_mem;
 	}
 	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE]->channel = res->start;