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PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()

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[ Upstream commit 214e0d8fe4 ]

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.

Link: https://lore.kernel.org/r/20220309091953.5630-1-linmq006@gmail.com
Fixes: 87e8657ba9 ("PCI: mediatek: Add new method to get shared pcie-cfg base address")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-03-09 09:19:52 +00:00 committed by Greg Kroah-Hartman
parent efc31be7e9
commit 4cef4237d6
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/controller/pcie-mediatek.c
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@ -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);
}