1 files changed, 15 insertions, 38 deletions

diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 300e12118c00..0a74b9587a2c 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -620,7 +620,7 @@ static void davinci_i2s_shutdown(struct snd_pcm_substream *substream,
 
 #define DAVINCI_I2S_RATES	SNDRV_PCM_RATE_8000_96000
 
-static struct snd_soc_dai_ops davinci_i2s_dai_ops = {
+static const struct snd_soc_dai_ops davinci_i2s_dai_ops = {
 	.startup	= davinci_i2s_startup,
 	.shutdown	= davinci_i2s_shutdown,
 	.prepare	= davinci_i2s_prepare,
@@ -661,18 +661,18 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	ioarea = request_mem_region(mem->start, resource_size(mem),
-				    pdev->name);
+	ioarea = devm_request_mem_region(&pdev->dev, mem->start,
+					 resource_size(mem),
+					 pdev->name);
 	if (!ioarea) {
 		dev_err(&pdev->dev, "McBSP region already claimed\n");
 		return -EBUSY;
 	}
 
-	dev = kzalloc(sizeof(struct davinci_mcbsp_dev), GFP_KERNEL);
-	if (!dev) {
-		ret = -ENOMEM;
-		goto err_release_region;
-	}
+	dev = devm_kzalloc(&pdev->dev, sizeof(struct davinci_mcbsp_dev),
+			   GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
 	if (pdata) {
 		dev->enable_channel_combine = pdata->enable_channel_combine;
 		dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].sram_size =
@@ -691,13 +691,11 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].ram_chan_q	= ram_chan_q;
 
 	dev->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(dev->clk)) {
-		ret = -ENODEV;
-		goto err_free_mem;
-	}
+	if (IS_ERR(dev->clk))
+		return -ENODEV;
 	clk_enable(dev->clk);
 
-	dev->base = ioremap(mem->start, resource_size(mem));
+	dev->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
 	if (!dev->base) {
 		dev_err(&pdev->dev, "ioremap failed\n");
 		ret = -ENOMEM;
@@ -715,7 +713,7 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	if (!res) {
 		dev_err(&pdev->dev, "no DMA resource\n");
 		ret = -ENXIO;
-		goto err_iounmap;
+		goto err_release_clk;
 	}
 	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].channel = res->start;
 
@@ -723,7 +721,7 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	if (!res) {
 		dev_err(&pdev->dev, "no DMA resource\n");
 		ret = -ENXIO;
-		goto err_iounmap;
+		goto err_release_clk;
 	}
 	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel = res->start;
 	dev->dev = &pdev->dev;
@@ -732,35 +730,24 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 
 	ret = snd_soc_register_dai(&pdev->dev, &davinci_i2s_dai);
 	if (ret != 0)
-		goto err_iounmap;
+		goto err_release_clk;
 
 	return 0;
 
-err_iounmap:
-	iounmap(dev->base);
 err_release_clk:
 	clk_disable(dev->clk);
 	clk_put(dev->clk);
-err_free_mem:
-	kfree(dev);
-err_release_region:
-	release_mem_region(mem->start, resource_size(mem));
-
 	return ret;
 }
 
 static int davinci_i2s_remove(struct platform_device *pdev)
 {
 	struct davinci_mcbsp_dev *dev = dev_get_drvdata(&pdev->dev);
-	struct resource *mem;
 
 	snd_soc_unregister_dai(&pdev->dev);
 	clk_disable(dev->clk);
 	clk_put(dev->clk);
 	dev->clk = NULL;
-	kfree(dev);
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(mem->start, resource_size(mem));
 
 	return 0;
 }
@@ -774,17 +761,7 @@ static struct platform_driver davinci_mcbsp_driver = {
 	},
 };
 
-static int __init davinci_i2s_init(void)
-{
-	return platform_driver_register(&davinci_mcbsp_driver);
-}
-module_init(davinci_i2s_init);
-
-static void __exit davinci_i2s_exit(void)
-{
-	platform_driver_unregister(&davinci_mcbsp_driver);
-}
-module_exit(davinci_i2s_exit);
+module_platform_driver(davinci_mcbsp_driver);
 
 MODULE_AUTHOR("Vladimir Barinov");
 MODULE_DESCRIPTION("TI DAVINCI I2S (McBSP) SoC Interface");