From: Aashish Sharma <shraash@xxxxxxxxxx>
[ Upstream commit beed115c2ce78f990222a29abed042582df4e87c ]
Add missing of_node_put()s before the returns to balance
of_node_get()s and of_node_put()s, which may get unbalanced
in case the for loop 'for_each_available_child_of_node' returns
early.
Fixes: 4302187d955f ("ASoC: mediatek: common: add soundcard driver common code")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Julia Lawall <julia.lawall@xxxxxxxx>
Link: https://lore.kernel.org/r/202304090504.2K8L6soj-lkp@xxxxxxxxx/
Signed-off-by: Aashish Sharma <shraash@xxxxxxxxxx>
Reviewed-by: Guenter Roeck <groeck@xxxxxxxxxxxx>
Reviewed-by: Trevor Wu <trevor.wu@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230411003431.4048700-1-shraash@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/mediatek/common/mtk-soundcard-driver.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/sound/soc/mediatek/common/mtk-soundcard-driver.c b/sound/soc/mediatek/common/mtk-soundcard-driver.c
index 7c55c2cb1f214..738093451ccbf 100644
--- a/sound/soc/mediatek/common/mtk-soundcard-driver.c
+++ b/sound/soc/mediatek/common/mtk-soundcard-driver.c
@@ -47,20 +47,26 @@ int parse_dai_link_info(struct snd_soc_card *card)
/* Loop over all the dai link sub nodes */
for_each_available_child_of_node(dev->of_node, sub_node) {
if (of_property_read_string(sub_node, "link-name",
- &dai_link_name))
+ &dai_link_name)) {
+ of_node_put(sub_node);
return -EINVAL;
+ }
for_each_card_prelinks(card, i, dai_link) {
if (!strcmp(dai_link_name, dai_link->name))
break;
}
- if (i >= card->num_links)
+ if (i >= card->num_links) {
+ of_node_put(sub_node);
return -EINVAL;
+ }
ret = set_card_codec_info(card, sub_node, dai_link);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(sub_node);
return ret;
+ }
}
return 0;
--
2.39.2
