ASoC: simple-card: Fix bug of wrong decrement DT node's refcount

DAI links's cpu_of_node's and codec_of_node's refcounts shouldn't
be decremented immediately at the end of the probe() fucntion.
Because we will still use them before the audio card is removed.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 159e517fa09a..cef7776b712c 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -481,12 +481,19 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
         snd_soc_card_set_drvdata(&priv->snd_card, priv);
 
         ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
+        if (ret >= 0)
+                return ret;
 
 err:
         asoc_simple_card_unref(pdev);
         return ret;
 }
 
+static int asoc_simple_card_remove(struct platform_device *pdev)
+{
+        return asoc_simple_card_unref(pdev);
+}
+
 static const struct of_device_id asoc_simple_of_match[] = {
         { .compatible = "simple-audio-card", },
         {},
@@ -500,6 +507,7 @@ static struct platform_driver asoc_simple_card = {
                 .of_match_table = asoc_simple_of_match,
         },
         .probe = asoc_simple_card_probe,
+        .remove = asoc_simple_card_remove,
 };
 
 module_platform_driver(asoc_simple_card);