[PATCH 2/3] ASoC: stm32: dfsdm: fix debugfs warnings on entry creation

[Olivier Moysan]

Register platform component with a prefix, to avoid warnings
on debugfs entries creation, due to component name
redundancy.

Signed-off-by: Olivier Moysan <olivier.moy...@st.com>
---
 sound/soc/stm/stm32_adfsdm.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index 71d341b732a4..24948b95eb19 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -304,6 +304,7 @@ MODULE_DEVICE_TABLE(of, stm32_adfsdm_of_match);
 static int stm32_adfsdm_probe(struct platform_device *pdev)
 {
        struct stm32_adfsdm_priv *priv;
+       struct snd_soc_component *component;
        int ret;
 
        priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
@@ -331,9 +332,15 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
        if (IS_ERR(priv->iio_cb))
                return PTR_ERR(priv->iio_cb);
 
-       ret = devm_snd_soc_register_component(&pdev->dev,
-                                             &stm32_adfsdm_soc_platform,
-                                             NULL, 0);
+       component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL);
+       if (!component)
+               return -ENOMEM;
+#ifdef CONFIG_DEBUG_FS
+       component->debugfs_prefix = "pcm";
+#endif
+
+       ret = snd_soc_add_component(&pdev->dev, component,
+                                   &stm32_adfsdm_soc_platform, NULL, 0);
        if (ret < 0)
                dev_err(&pdev->dev, "%s: Failed to register PCM platform\n",
                        __func__);
@@ -341,12 +348,20 @@ static int stm32_adfsdm_probe(struct platform_device 
*pdev)
        return ret;
 }
 
+static int stm32_adfsdm_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_component(&pdev->dev);
+
+       return 0;
+}
+
 static struct platform_driver stm32_adfsdm_driver = {
        .driver = {
                   .name = STM32_ADFSDM_DRV_NAME,
                   .of_match_table = stm32_adfsdm_of_match,
                   },
        .probe = stm32_adfsdm_probe,
+       .remove = stm32_adfsdm_remove,
 };
 
 module_platform_driver(stm32_adfsdm_driver);
-- 
2.7.4