Calls to dlpar_detach_node do not iterate over child nodes detaching them as
well. By iterating and detaching the child nodes we ensure that they have the
OF_DETACHED flag set and that their reference counts are decremented such that
the node will be freed from memory by of_node_release.
Signed-off-by: Tyrel Datwyler <tyr...@linux.vnet.ibm.com>
---
arch/powerpc/platforms/pseries/dlpar.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c
b/arch/powerpc/platforms/pseries/dlpar.c
index 4ea667d..7cfdaae 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -286,8 +286,15 @@ int dlpar_attach_node(struct device_node *dn)
int dlpar_detach_node(struct device_node *dn)
{
+ struct device_node *child;
int rc;
+ child = of_get_next_child(dn, NULL);
+ while (child) {
+ dlpar_detach_node(child);
+ child = of_get_next_child(dn, child);
+ }
+
rc = of_detach_node(dn);
if (rc)
return rc;
--
1.7.12.4
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