[PATCH v4 04/18] powerpc/pseries: add of_node_put() in dlpar_detach_node()

[frowand . list]

From: Frank Rowand <frank.rowand@xxxxxxxx>

"of: overlay: add missing of_node_get() in __of_attach_node_sysfs"
added a missing of_node_get() to __of_attach_node_sysfs().  This
results in a refcount imbalance for nodes attached with
dlpar_attach_node().  The calling sequence from dlpar_attach_node()
to __of_attach_node_sysfs() is:

   dlpar_attach_node()
      of_attach_node()
         __of_attach_node_sysfs()

Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxx>
---

***** UNTESTED.  I need people with the affected PowerPC systems
*****            (systems that dynamically allocate and deallocate
*****            devicetree nodes) to test this patch.

 arch/powerpc/platforms/pseries/dlpar.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index a0b20c03f078..e3010b14aea5 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -272,6 +272,8 @@ int dlpar_detach_node(struct device_node *dn)
 	if (rc)
 		return rc;
 
+	of_node_put(dn);
+
 	return 0;
 }
 
-- 
Frank Rowand <frank.rowand@xxxxxxxx>