4.19-stable review patch. If anyone has any objections, please let me know.
------------------
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 6b2c8c6e7a00..5195e012dc6d 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; }