The patch
ASoC: Intel: Skylake: Fix uuid_module memory leak in failure case
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
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.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From f8e066521192c7debe59127d90abbe2773577e25 Mon Sep 17 00:00:00 2001
From: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com Date: Tue, 7 Nov 2017 16:16:19 +0530 Subject: [PATCH] ASoC: Intel: Skylake: Fix uuid_module memory leak in failure case
In the loop that adds the uuid_module to the uuid_list list, allocated memory is not properly freed in the error path free uuid_list whenever any of the memory allocation in the loop fails to avoid memory leak.
Signed-off-by: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com Signed-off-by: Guneshwor Singh guneshwor.o.singh@intel.com Acked-By: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/skylake/skl-sst-utils.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c index 369ef7ce981c..8ff89280d9fd 100644 --- a/sound/soc/intel/skylake/skl-sst-utils.c +++ b/sound/soc/intel/skylake/skl-sst-utils.c @@ -251,6 +251,7 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, struct uuid_module *module; struct firmware stripped_fw; unsigned int safe_file; + int ret = 0;
/* Get the FW pointer to derive ADSP header */ stripped_fw.data = fw->data; @@ -299,8 +300,10 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw,
for (i = 0; i < num_entry; i++, mod_entry++) { module = kzalloc(sizeof(*module), GFP_KERNEL); - if (!module) - return -ENOMEM; + if (!module) { + ret = -ENOMEM; + goto free_uuid_list; + }
uuid_bin = (uuid_le *)mod_entry->uuid.id; memcpy(&module->uuid, uuid_bin, sizeof(module->uuid)); @@ -311,8 +314,8 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, size = sizeof(int) * mod_entry->instance_max_count; module->instance_id = devm_kzalloc(ctx->dev, size, GFP_KERNEL); if (!module->instance_id) { - kfree(module); - return -ENOMEM; + ret = -ENOMEM; + goto free_uuid_list; }
list_add_tail(&module->list, &skl->uuid_list); @@ -323,6 +326,10 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, }
return 0; + +free_uuid_list: + skl_freeup_uuid_list(skl); + return ret; }
void skl_freeup_uuid_list(struct skl_sst *ctx)