PCI: tegra: Fix OF node reference leak

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>

diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 4aa103aaa3661632fe0324b1d8449533501393a8..8cc7197f968d495eb0e553e3a735f9f535d67ba8 100644 (file)
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -2188,13 +2188,15 @@ 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;
                }
 
                /*
@@ -2212,7 +2214,8 @@ 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;
                        }
                }