diff options
| author |   Wen Yang <wen.yang99@zte.com.cn> | 2019-07-13 11:46:15 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-07-16 19:17:15 +0100 |
| commit | 2abee12c0ab1924a69993d2c063a39a952e7d836 (patch) | |
| tree | 11b8ba762db6f3ff703ae84f0416efe2f11ca7ba /sound | |
| parent | ASoC: samsung: odroid: fix an use-after-free issue for codec (diff) | |
| download | linux-dev-2abee12c0ab1924a69993d2c063a39a952e7d836.tar.xz linux-dev-2abee12c0ab1924a69993d2c063a39a952e7d836.zip | |
ASoC: samsung: odroid: fix a double-free issue for cpu_dai
The cpu_dai variable is still being used after the of_node_put() call,
which may result in double-free:
of_node_put(cpu_dai); ---> released here
ret = devm_snd_soc_register_card(dev, card);
if (ret < 0) {
...
goto err_put_clk_i2s; --> jump to err_put_clk_i2s
...
err_put_clk_i2s:
clk_put(priv->clk_i2s_bus);
err_put_sclk:
clk_put(priv->sclk_i2s);
err_put_cpu_dai:
of_node_put(cpu_dai); --> double-free here
Fixes: d832d2b246c5 ("ASoC: samsung: odroid: Fix of_node refcount unbalance")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/1562989575-33785-3-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/samsung/odroid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c index 64ebe895cdd7..f0f5fa9c27d3 100644 --- a/sound/soc/samsung/odroid.c +++ b/sound/soc/samsung/odroid.c @@ -308,7 +308,6 @@ static int odroid_audio_probe(struct platform_device *pdev) ret = PTR_ERR(priv->clk_i2s_bus); goto err_put_sclk; } - of_node_put(cpu_dai); ret = devm_snd_soc_register_card(dev, card); if (ret < 0) { @@ -316,6 +315,7 @@ static int odroid_audio_probe(struct platform_device *pdev) goto err_put_clk_i2s; } + of_node_put(cpu_dai); of_node_put(codec); return 0; |