[PATCH] PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup

Miaoqian Lin
2022-03-09T09:20:03Z

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 87e8657ba99c ("PCI: mediatek: Add new method to get shared pcie-cfg base address")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
drivers/pci/controller/pcie-mediatek.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index ddfbd4aebdec..be8bd919cb88 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1008,6 +1008,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
"mediatek,generic-pciecfg");
if (cfg_node) {
pcie->cfg = syscon_node_to_regmap(cfg_node);
+ of_node_put(cfg_node);
if (IS_ERR(pcie->cfg))
return PTR_ERR(pcie->cfg);
}
--
2.17.1