From: Christophe JAILLET christophe.jaillet@wanadoo.fr
stable inclusion from stable-5.10.68 commit aa638669c8a47f856eb4a096ca4f18d612f6cd95 bugzilla: 182671 https://gitee.com/openeuler/kernel/issues/I4EWUH
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
--------------------------------
[ Upstream commit eff21f5da308265678e7e59821795e606f3e560f ]
Commit 9e38e690ace3 ("PCI: tegra: Fix OF node reference leak") has fixed some node reference leaks in this function but missed some of them.
In fact, having 'port' referenced in the 'rp' structure is not enough to prevent the leak, until 'rp' is actually added in the 'pcie->ports' list.
Add the missing 'goto err_node_put' accordingly.
Link: https://lore.kernel.org/r/55b11e9a7fa2987fbc0869d68ae59888954d65e2.162014853... Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Reviewed-by: Vidya Sagar vidyas@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- drivers/pci/controller/pci-tegra.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c index 1a2af963599c..b4eb75f25906 100644 --- a/drivers/pci/controller/pci-tegra.c +++ b/drivers/pci/controller/pci-tegra.c @@ -2160,13 +2160,15 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie) rp->np = port;
rp->base = devm_pci_remap_cfg_resource(dev, &rp->regs); - if (IS_ERR(rp->base)) - return PTR_ERR(rp->base); + if (IS_ERR(rp->base)) { + err = PTR_ERR(rp->base); + goto err_node_put; + }
label = devm_kasprintf(dev, GFP_KERNEL, "pex-reset-%u", index); if (!label) { - dev_err(dev, "failed to create reset GPIO label\n"); - return -ENOMEM; + err = -ENOMEM; + goto err_node_put; }
/* @@ -2184,7 +2186,8 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie) } else { dev_err(dev, "failed to get reset GPIO: %ld\n", PTR_ERR(rp->reset_gpio)); - return PTR_ERR(rp->reset_gpio); + err = PTR_ERR(rp->reset_gpio); + goto err_node_put; } }