1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/profile.c b/kernel/profile.c
index a38fa70075fe..0221a50ca867 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -184,7 +184,7 @@ void unregister_timer_hook(int (*hook)(struct pt_regs *))
         WARN_ON(hook != timer_hook);
         timer_hook = NULL;
         /* make sure all CPUs see the NULL hook */
-        synchronize_kernel();
+        synchronize_sched();  /* Allow ongoing interrupts to complete. */
 }
 
 EXPORT_SYMBOL_GPL(register_timer_hook);
@@ -522,7 +522,7 @@ static int __init create_hash_tables(void)
         return 0;
 out_cleanup:
         prof_on = 0;
-        mb();
+        smp_mb();
         on_each_cpu(profile_nop, NULL, 0, 1);
         for_each_online_cpu(cpu) {
                 struct page *page;