sched: fix section mismatch

init_rootdomain() calls alloc_bootmem_cpumask_var() at system boot,
so does cpupri_init().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched_cpupri.c b/kernel/sched_cpupri.c
index 018b7be..1e00bfa 100644
--- a/kernel/sched_cpupri.c
+++ b/kernel/sched_cpupri.c
@@ -151,7 +151,7 @@
  *
  * Returns: -ENOMEM if memory fails.
  */
-int cpupri_init(struct cpupri *cp, bool bootmem)
+int __init_refok cpupri_init(struct cpupri *cp, bool bootmem)
 {
 	int i;