[PATCH 5/5] arm: add missing of_node_put

Julia Lawall
2015-10-10T12:30:54Z

for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

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

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

for_each_child_of_node(root, child) {
... when != of_node_put(child)
when != e = child
+ of_node_put(child);
? break;
...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
arch/arm/kernel/devtree.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index 11c54de..432ff34 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -143,6 +143,7 @@ void __init arm_dt_init_cpu_maps(void)
"max cores %u, capping them\n",
cpuidx, nr_cpu_ids)) {
cpuidx = nr_cpu_ids;
+ of_node_put(cpu);
break;
}