powerpc/powermac: Add missing of_node_put

np is initialized to the result of calling a function that calls
of_node_get, so of_node_put should be called before the pointer is dropped.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e,e1,e2;
@@

* e = \(of_find_node_by_type\|of_find_node_by_name\)(...)
  ... when != of_node_put(e)
      when != true e == NULL
      when != e2 = e
  e = e1
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 96580b189ec2..970ea1de4298 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -494,11 +494,15 @@ static int __init pmac_declare_of_platform_devices(void)
                 return -1;
 
         np = of_find_node_by_name(NULL, "valkyrie");
-        if (np)
+        if (np) {
                 of_platform_device_create(np, "valkyrie", NULL);
+                of_node_put(np);
+        }
         np = of_find_node_by_name(NULL, "platinum");
-        if (np)
+        if (np) {
                 of_platform_device_create(np, "platinum", NULL);
+                of_node_put(np);
+        }
         np = of_find_node_by_type(NULL, "smu");
         if (np) {
                 of_platform_device_create(np, "smu", NULL);