ASoC: Tegra TrimSlice machine: Use devm_ APIs and module_platform_driver

module_platform_driver saves some boiler-plate code.

The devm_ APIs remove the need to manually clean up allocations,
thus removing some code.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c
index 2699a6f..d564b40 100644 (file)
--- a/sound/soc/tegra/trimslice.c
+++ b/sound/soc/tegra/trimslice.c
@@ -170,15 +170,17 @@ static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
        struct tegra_trimslice *trimslice;
        int ret;
 
-       trimslice = kzalloc(sizeof(struct tegra_trimslice), GFP_KERNEL);
+       trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
+                                GFP_KERNEL);
        if (!trimslice) {
                dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
-               return -ENOMEM;
+               ret = -ENOMEM;
+               goto err;
        }
 
        ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
        if (ret)
-               goto err_free_trimslice;
+               goto err;
 
        card->dev = &pdev->dev;
        platform_set_drvdata(pdev, card);
@@ -195,8 +197,7 @@ static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
 
 err_fini_utils:
        tegra_asoc_utils_fini(&trimslice->util_data);
-err_free_trimslice:
-       kfree(trimslice);
+err:
        return ret;
 }
 
@@ -209,8 +210,6 @@ static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
 
        tegra_asoc_utils_fini(&trimslice->util_data);
 
-       kfree(trimslice);
-
        return 0;
 }
 
@@ -222,18 +221,7 @@ static struct platform_driver tegra_snd_trimslice_driver = {
        .probe = tegra_snd_trimslice_probe,
        .remove = __devexit_p(tegra_snd_trimslice_remove),
 };
-
-static int __init snd_tegra_trimslice_init(void)
-{
-       return platform_driver_register(&tegra_snd_trimslice_driver);
-}
-module_init(snd_tegra_trimslice_init);
-
-static void __exit snd_tegra_trimslice_exit(void)
-{
-       platform_driver_unregister(&tegra_snd_trimslice_driver);
-}
-module_exit(snd_tegra_trimslice_exit);
+module_platform_driver(tegra_snd_trimslice_driver);
 
 MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
 MODULE_DESCRIPTION("Trimslice machine ASoC driver");