@@ -142,7 +142,7 @@ static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
if (!cpu_np) {
dev_err(&pdev->dev, "atmel,ssc-controller node missing\n");
ret = -EINVAL;
- goto out;
+ goto out_put_codec_np;
}
dai->cpus->of_node = cpu_np;
dai->platforms->of_node = cpu_np;
@@ -153,12 +153,9 @@ static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
if (ret != 0) {
dev_err(&pdev->dev, "Failed to set SSC %d for audio: %d\n",
ret, priv->ssc_id);
- goto out;
+ goto out_put_cpu_np;
}
- of_node_put(codec_np);
- of_node_put(cpu_np);
-
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret) {
dev_err(&pdev->dev, "Platform device allocation failed\n");
@@ -167,10 +164,14 @@ static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "%s ok\n", __func__);
- return ret;
+ goto out_put_cpu_np;
out_put_audio:
atmel_ssc_put_audio(priv->ssc_id);
+out_put_cpu_np:
+ of_node_put(cpu_np);
+out_put_codec_np:
+ of_node_put(codec_np);
out:
return ret;
}
The device_node pointer is returned by of_parse_phandle() with refcount incremented. We should use of_node_put() on it when done. This function only calls of_node_put() in the regular path. And it will cause refcount leak in error path. Fixes: fdbcb3cba54b ("ASoC: atmel: machine driver for at91sam9x5-wm8731 boards") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- sound/soc/atmel/sam9x5_wm8731.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)