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| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-07-13 11:46:14 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-07-16 19:17:14 +0100 |
| commit | 9b6d104a6b150bd4d3e5b039340e1f6b20c2e3c1 (patch) | |
| tree | e319dde146adcf0f9be003514061178ca7cec2b1 | |
| parent | ec3042ad39d4e2ddbc3a3344f90bb10d8feb53bc (diff) | |
| download | linux-9b6d104a6b150bd4d3e5b039340e1f6b20c2e3c1.tar.bz2 | |
ASoC: samsung: odroid: fix an use-after-free issue for codec
The codec variable is still being used after the of_node_put() call,
which may result in use-after-free.
Fixes: bc3cf17b575a ("ASoC: samsung: odroid: Add support for secondary CPU DAI")
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/1562989575-33785-2-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/samsung/odroid.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c index dfb6e460e7eb..64ebe895cdd7 100644 --- a/sound/soc/samsung/odroid.c +++ b/sound/soc/samsung/odroid.c @@ -284,9 +284,8 @@ static int odroid_audio_probe(struct platform_device *pdev) } of_node_put(cpu); - of_node_put(codec); if (ret < 0) - return ret; + goto err_put_node; ret = snd_soc_of_get_dai_link_codecs(dev, codec, codec_link); if (ret < 0) @@ -317,6 +316,7 @@ static int odroid_audio_probe(struct platform_device *pdev) goto err_put_clk_i2s; } + of_node_put(codec); return 0; err_put_clk_i2s: @@ -326,6 +326,8 @@ err_put_sclk: err_put_cpu_dai: of_node_put(cpu_dai); snd_soc_of_put_dai_link_codecs(codec_link); +err_put_node: + of_node_put(codec); return ret; } |