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Subject[PATCH AUTOSEL 4.19 1/7] ASoC: Intel: Skylake: mem leak in skl register function
Date
From: Kamil Duljas <kamil.duljas@gmail.com>

[ Upstream commit f8ba14b780273fd290ddf7ee0d7d7decb44cc365 ]

skl_platform_register() uses krealloc. When krealloc is fail,
then previous memory is not freed. The leak is also when soc
component registration failed.

Signed-off-by: Kamil Duljas <kamil.duljas@gmail.com>
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20231116224112.2209-2-kamil.duljas@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/skylake/skl-pcm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index 6b2c8c6e7a00f..5195e012dc6d4 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -1450,6 +1450,7 @@ int skl_platform_register(struct device *dev)
dais = krealloc(skl->dais, sizeof(skl_fe_dai) +
sizeof(skl_platform_dai), GFP_KERNEL);
if (!dais) {
+ kfree(skl->dais);
ret = -ENOMEM;
goto err;
}
@@ -1462,8 +1463,10 @@ int skl_platform_register(struct device *dev)

ret = devm_snd_soc_register_component(dev, &skl_component,
skl->dais, num_dais);
- if (ret)
+ if (ret) {
+ kfree(skl->dais);
dev_err(dev, "soc component registration failed %d\n", ret);
+ }
err:
return ret;
}
--
2.42.0
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