If node == NUMA_NO_NODE, pol is NULL, we should return NULL instead of
do "if (!pol->mode)" check.
Signed-off-by: Jianguo Wu <wujian...@huawei.com>
---
mm/mempolicy.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 4baf12e..e0e3398 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -129,6 +129,8 @@ static struct mempolicy *get_task_policy(struct task_struct
*p)
node = numa_node_id();
if (node != NUMA_NO_NODE)
pol = &preferred_node_policy[node];
+ else
+ return NULL;
/* preferred_node_policy is not initialised early in boot */
if (!pol->mode)
--
1.8.2.2
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