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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-03-16 14:15:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:22 +0300 |
| commit | f589063b585ac6dd2081bde6c145411cf48d8d92 (patch) | |
| tree | 484d1fe42a048da09df66a355c48549c7d9f0784 /sound/soc/atmel | |
| parent | f2b0fc2a46a630289a0c53fdc6135a4051145c99 (diff) | |
| download | linux-f589063b585ac6dd2081bde6c145411cf48d8d92.tar.xz | |
ASoC: atmel: Fix error handling in sam9x5_wm8731_driver_probe
[ Upstream commit 740dc3e846537c3743da98bf106f376023fd085c ]
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>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220316111530.4551-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc/atmel')
| -rw-r--r-- | sound/soc/atmel/sam9x5_wm8731.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sound/soc/atmel/sam9x5_wm8731.c b/sound/soc/atmel/sam9x5_wm8731.c index 7745250fd743..529604a06c53 100644 --- a/sound/soc/atmel/sam9x5_wm8731.c +++ b/sound/soc/atmel/sam9x5_wm8731.c @@ -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; } |