From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Wed, 30 May 2012 17:07:29 +0000 (+0000)
Subject: powerpc/numa: Fix OF node refcounting bug
X-Git-Tag: firefly_0821_release~3680^2~2388^2~60
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5b958a7eef9e116c7be516924f27e5c62a9c6914;p=firefly-linux-kernel-4.4.55.git

powerpc/numa: Fix OF node refcounting bug

The form affinity for NUMA is set to 1 if the firmware supports
OPAL. Otherwise, we have to retrieve that from OF node "/chosen".
For the latter case, OF node "/chosen" reference count was never
decreased.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6e8f677f5646..7c28589d45bd 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -340,6 +340,8 @@ static int __init find_min_common_depth(void)
 				dbg("Using form 1 affinity\n");
 				form1_affinity = 1;
 			}
+
+			of_node_put(chosen);
 		}
 	}