[PATCH] powerpc/pseries: Fix node leak in update_lmb_associativity_index()

[Michael Ellerman]

In update_lmb_associativity_index() we lookup dr_node using
of_find_node_by_path() which takes a reference for us. In the
non-error case we forget to drop the reference. Note that
find_aa_index() does modify properties of the node, but doesn't need
an extra reference held once it's returned.

Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/platforms/pseries/hotplug-memory.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c 
b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 2b796da822c2..10e2b5a9acf6 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -197,6 +197,7 @@ static int update_lmb_associativity_index(struct drmem_lmb 
*lmb)
 
        found = find_aa_index(dr_node, ala_prop, lmb_assoc, &aa_index);
 
+       of_node_put(dr_node);
        dlpar_free_cc_nodes(lmb_node);
 
        if (!found) {
-- 
2.17.2