When of_parse_phandle() is used to find a device node, its
reference count is incremented by the helper. Once we're
finished with them, it's our responsibly to ensure they
are freed in the correct manor.
Cc: alsa-de...@alsa-project.org
Cc: Liam Girdwood <l...@ti.com>
Cc: Mark Brown <broo...@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.wall...@linaro.org>
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
sound/soc/ux500/mop500.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index 6f67e6b..651a52a 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -57,6 +57,20 @@ static struct snd_soc_card mop500_card = {
.num_links = ARRAY_SIZE(mop500_dai_links),
};
+static void mop500_of_node_put(void)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ if (mop500_dai_links[i].cpu_of_node)
+ of_node_put((struct device_node *)
+ mop500_dai_links[i].cpu_of_node);
+ if (mop500_dai_links[i].codec_of_node)
+ of_node_put((struct device_node *)
+ mop500_dai_links[i].codec_of_node);
+ }
+}
+
static int __devinit mop500_of_probe(struct platform_device *pdev,
struct device_node *np)
{
@@ -69,6 +83,7 @@ static int __devinit mop500_of_probe(struct platform_device
*pdev,
if (!(msp_np[0] && msp_np[1] && codec_np)) {
dev_err(&pdev->dev, "Phandle missing or invalid\n");
+ mop500_of_node_put();
return -EINVAL;
}
@@ -83,6 +98,7 @@ static int __devinit mop500_of_probe(struct platform_device
*pdev,
return 0;
}
+
static int __devinit mop500_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -128,6 +144,7 @@ static int __devexit mop500_remove(struct platform_device
*pdev)
snd_soc_unregister_card(mop500_card);
mop500_ab8500_remove(mop500_card);
+ mop500_of_node_put();
return 0;
}
--
1.7.9.5
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