From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit e0bb4659e235770e6f53b3692e958591f49448f5 ]
The device_node pointer returned by of_parse_phandle() with refcount
incremented, when finish using it, the refcount need be decreased.
Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/mediatek/mtk_wed.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index fff2b745587e..614147ad6116 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -808,7 +808,7 @@ void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
pdev = of_find_device_by_node(np);
if (!pdev)
- return;
+ goto err_of_node_put;
get_device(&pdev->dev);
irq = platform_get_irq(pdev, 0);
@@ -861,6 +861,8 @@ void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
mutex_unlock(&hw_lock);
err_put_device:
put_device(&pdev->dev);
+err_of_node_put:
+ of_node_put(np);
}
void mtk_wed_exit(void)
@@ -881,6 +883,7 @@ void mtk_wed_exit(void)
hw_list[i] = NULL;
debugfs_remove(hw->debugfs_dir);
put_device(hw->dev);
+ of_node_put(hw->node);
kfree(hw);
}
}
--
2.35.1
