ASoC: dbdma2.c: use devm_ functions

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_kzalloc, devm_request_mem_region and
devm_ioremap for data that is allocated in the probe function of a platform
device and is only freed in the remove function.

Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index 92bc1b0..8372cd3 100644 (file)
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -350,27 +350,21 @@ static struct snd_soc_platform_driver au1xpsc_soc_platform = {
 static int __devinit au1xpsc_pcm_drvprobe(struct platform_device *pdev)
 {
        struct au1xpsc_audio_dmadata *dmadata;
-       int ret;
 
-       dmadata = kzalloc(2 * sizeof(struct au1xpsc_audio_dmadata), GFP_KERNEL);
+       dmadata = devm_kzalloc(&pdev->dev,
+                              2 * sizeof(struct au1xpsc_audio_dmadata),
+                              GFP_KERNEL);
        if (!dmadata)
                return -ENOMEM;
 
        platform_set_drvdata(pdev, dmadata);
 
-       ret = snd_soc_register_platform(&pdev->dev, &au1xpsc_soc_platform);
-       if (ret)
-               kfree(dmadata);
-
-       return ret;
+       return snd_soc_register_platform(&pdev->dev, &au1xpsc_soc_platform);
 }
 
 static int __devexit au1xpsc_pcm_drvremove(struct platform_device *pdev)
 {
-       struct au1xpsc_audio_dmadata *dmadata = platform_get_drvdata(pdev);
-
        snd_soc_unregister_platform(&pdev->dev);
-       kfree(dmadata);
 
        return 0;
 }