[PATCH] powerpc: sysdev: Fix refcount leak bug in fsl_pci.c

[Liang He]

In is_kdump(), we need a of_node_put() to dec the refcount which is
incremented by of_find_node_by_type().

Signed-off-by: Liang He <win...@126.com>
---
 arch/powerpc/sysdev/fsl_pci.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 1011cfea2e32..4c986c955951 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -180,6 +180,7 @@ static int setup_one_atmu(struct ccsr_pci __iomem *pci,
 static bool is_kdump(void)
 {
        struct device_node *node;
+       bool ret;
 
        node = of_find_node_by_type(NULL, "memory");
        if (!node) {
@@ -187,7 +188,10 @@ static bool is_kdump(void)
                return false;
        }
 
-       return of_property_read_bool(node, "linux,usable-memory");
+       ret = of_property_read_bool(node, "linux,usable-memory");
+       of_node_put(node);
+
+       return ret;
 }
 
 /* atmu setup for fsl pci/pcie controller */
-- 
2.25.1