[PATCH] powerpc: Fix device node refcounting

[Brian King]

While testing fixes to the hvcs hotplug code, kmemleak was reporting
potential memory leaks. This was tracked down to the struct device_node
object associated with the hvcs device. Looking at the leaked
object in crash showed that the kref in the kobject in the device_node
had a reference count of 1 still, and the release function was never
getting called as a result of this. This adds an of_node_put in
pSeries_reconfig_remove_node in order to balance the refcounting
so that we actually free the device_node in the case of it being
allocated in pSeries_reconfig_add_node.

Signed-off-by: Brian King <brking at linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/reconfig.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 599bd2c78514..8cb7309b19a4 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -77,6 +77,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
 	}
 
 	of_detach_node(np);
+	of_node_put(np);
 	of_node_put(parent);
 	return 0;
 }
-- 
2.31.1