PCI: tegra: Fix OF node reference leak

[ 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/55b11e9a7fa2987fbc0869d68ae59888954d65e2.1620148539.git.christophe.jaillet@wanadoo.fr
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>

diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index c979229a6d0df341b87ec113e675e2b01f2687f9..b358212d71ab7f86fd8665e2fcce65d8cc84a258 100644 (file)
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -2193,13 +2193,15 @@ 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;
                }
 
                /*
@@ -2217,7 +2219,8 @@ 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;
                        }
                }