[PATCH] ASoC: Intel: Skylake: mem leak in skl register function
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 --- 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 d0c02e8a6785..e2578ee001ff 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -1462,6 +1462,7 @@ 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; } @@ -1474,8 +1475,10 @@ 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; }
On 11/16/2023 11:41 PM, Kamil Duljas wrote:
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
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 d0c02e8a6785..e2578ee001ff 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -1462,6 +1462,7 @@ 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;@@ -1474,8 +1475,10 @@ 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);- } err: return ret; }
Seems ok, Reviewed-by: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com
On Thu, 16 Nov 2023 23:41:13 +0100, Kamil Duljas wrote:
skl_platform_register() uses krealloc. When krealloc is fail, then previous memory is not freed. The leak is also when soc component registration failed.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: Intel: Skylake: mem leak in skl register function commit: f8ba14b780273fd290ddf7ee0d7d7decb44cc365
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
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Thanks, Mark
participants (3)
-
Amadeusz Sławiński -
Kamil Duljas -
Mark Brown