[PATCH] powerpc: kernel: pci_dn: Add missing of_node_put() for of_get_xx API

[Liang He]

In pci_add_device_node_info(), we should use of_node_put() for the
reference 'parent' returned by of_get_parent() to keep refcount
balance.

Fixes: cca87d303c85 ("powerpc/pci: Refactor pci_dn")
Co-authored-by: Miaoqian Lin <linmq...@gmail.com>
Signed-off-by: Liang He <win...@126.com>
---
 arch/powerpc/kernel/pci_dn.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 938ab8838ab5..aa221958007e 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -330,6 +330,7 @@ struct pci_dn *pci_add_device_node_info(struct 
pci_controller *hose,
        INIT_LIST_HEAD(&pdn->list);
        parent = of_get_parent(dn);
        pdn->parent = parent ? PCI_DN(parent) : NULL;
+       of_node_put(parent);
        if (pdn->parent)
                list_add_tail(&pdn->list, &pdn->parent->child_list);
 
-- 
2.25.1