[PATCH 3/3] memcgroup: return negative error code in mem_cgroup_create()

From: Li Zefan
Date: Mon Feb 18 2008 - 01:01:52 EST


Cgroup requires the subsystem to return negative error code on
error in the create method.

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
---
mm/memcontrol.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c2959ee..4aac04c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1101,7 +1101,7 @@ mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont)
mem = kzalloc(sizeof(struct mem_cgroup), GFP_KERNEL);

if (mem == NULL)
- return NULL;
+ return ERR_PTR(-ENOMEM);

res_counter_init(&mem->res);

@@ -1117,7 +1117,7 @@ free_out:
free_mem_cgroup_per_zone_info(mem, node);
if (cont->parent != NULL)
kfree(mem);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}

static void mem_cgroup_pre_destroy(struct cgroup_subsys *ss,
--
1.5.4.rc3

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