[PATCH] powerpc: 85xx: Fix refcount bugs in ge_imp3a_pci_assign_primary()

[Liang He]

for_each_node_by_type() will automatically increase and decrease
the refcount during the iteration. However, there is a reference
escaped into global 'fsl_pci_primary' and we need to handle it.

Signed-off-by: Liang He <win...@126.com>
---
 arch/powerpc/platforms/85xx/ge_imp3a.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c 
b/arch/powerpc/platforms/85xx/ge_imp3a.c
index 8e827376d97b..e3e8f18825a1 100644
--- a/arch/powerpc/platforms/85xx/ge_imp3a.c
+++ b/arch/powerpc/platforms/85xx/ge_imp3a.c
@@ -89,8 +89,10 @@ static void __init ge_imp3a_pci_assign_primary(void)
                    of_device_is_compatible(np, "fsl,mpc8548-pcie") ||
                    of_device_is_compatible(np, "fsl,p2020-pcie")) {
                        of_address_to_resource(np, 0, &rsrc);
-                       if ((rsrc.start & 0xfffff) == 0x9000)
-                               fsl_pci_primary = np;
+                       if ((rsrc.start & 0xfffff) == 0x9000) {
+                               of_node_put(fsl_pci_primary);
+                               fsl_pci_primary = of_node_get(np);
+                       }
                }
        }
 #endif
-- 
2.25.1