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authorPankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>2017-11-07 16:16:19 +0530
committerMark Brown <broonie@kernel.org>2017-11-08 18:56:17 +0000
commitf8e066521192c7debe59127d90abbe2773577e25 (patch)
tree79da77ad491a4409cba52d2a023c15cf840e0ad1 /sound
parent0265ddd7b713bd8b68a9ec451761bcb87bbac4b3 (diff)
downloadlinux-f8e066521192c7debe59127d90abbe2773577e25.tar.bz2
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/intel/skylake/skl-sst-utils.c15
1 files 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)