If node == NUMA_NO_NODE, pol is NULL, we should return NULL instead of do "if (!pol->mode)" check. Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxx> --- 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>