This is a note to let you know that I've just added the patch titled PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: pci-mediatek-fix-refcount-leak-in-mtk_pcie_subsys_po.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 664e34ee681fa514cdca8f65932e03f1fc2a2e68 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Wed Mar 9 09:19:52 2022 +0000 PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup() [ Upstream commit 214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4 ] 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@xxxxxxxxx Fixes: 87e8657ba99c ("PCI: mediatek: Add new method to get shared pcie-cfg base address") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> Reviewed-by: Miles Chen <miles.chen@xxxxxxxxxxxx> Acked-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 2f3f974977a3..5273cb5ede0f 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); }