ASoC: fsl_spdif: Remove unnecessary dev_set_drvdata()

Driver core clears the driver data to NULL after device_release or on probe
failure, so just remove it from here.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/fsl_spdif.c

@@ -1184,7 +1184,7 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 					 &spdif_priv->cpu_dai_drv, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
-		goto error_dev;
+		return ret;
 	}
 
 	ret = imx_pcm_dma_init(pdev);
@@ -1197,8 +1197,6 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 
 error_component:
 	snd_soc_unregister_component(&pdev->dev);
-error_dev:
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	return ret;
 }
@@ -1207,7 +1205,6 @@ static int fsl_spdif_remove(struct platform_device *pdev)
 {
 	imx_pcm_dma_exit(pdev);
 	snd_soc_unregister_component(&pdev->dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	return 0;
 }