[PATCH -next] mm: memcg: use meaningful error code for return value

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alloc_mem_cgroup_per_node_info() returns 1 if failed, use -ENOMEM
instead, which is more meaningful.

Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
---
 mm/memcontrol.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d11536ef59ef..657f68b536c4 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5659,7 +5659,7 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
 
 	pn = kzalloc_node(sizeof(*pn), GFP_KERNEL, node);
 	if (!pn)
-		return 1;
+		return -ENOMEM;
 
 	pn->lruvec_stats = kzalloc_node(sizeof(struct lruvec_stats), GFP_KERNEL,
 					node);
@@ -5679,7 +5679,7 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
 fail:
 	kfree(pn->lruvec_stats);
 	kfree(pn);
-	return 1;
+	return -ENOMEM;
 }
 
 static void free_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
-- 
2.34.1





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