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authorDinghao Liu <dinghao.liu@zju.edu.cn>2020-08-20 12:28:27 +0800
committerMark Brown <broonie@kernel.org>2020-08-26 19:26:58 +0100
commitc1e6414cdc371f9ed82cefebba7538499a3059f9 (patch)
tree6665b6878e9dd114123daf54ff7d6c304d9b35c5 /sound/soc
parentd062085d61b1c2015845d1d9c475266381cce785 (diff)
ASoC: qcom: common: Fix refcount imbalance on error
for_each_child_of_node returns a node pointer np with refcount incremented. So when devm_kzalloc fails, a pairing refcount decrement is needed to keep np's refcount balanced. Fixes: 16395ceee11f8 ("ASoC: qcom: common: Fix NULL pointer in of parser") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Link: https://lore.kernel.org/r/20200820042828.10308-1-dinghao.liu@zju.edu.cn Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/qcom/common.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
index 5194d90ddb96..fd69cf8b1f23 100644
--- a/sound/soc/qcom/common.c
+++ b/sound/soc/qcom/common.c
@@ -52,8 +52,10 @@ int qcom_snd_parse_of(struct snd_soc_card *card)
for_each_child_of_node(dev->of_node, np) {
dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
- if (!dlc)
- return -ENOMEM;
+ if (!dlc) {
+ ret = -ENOMEM;
+ goto err;
+ }
link->cpus = &dlc[0];
link->platforms = &dlc[1];