1 files changed, 1 insertions, 2 deletions

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 46fc981e02ba..580abb53ce83 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -134,8 +134,7 @@ void __cpuinit cpu_init(void)
 
         atomic_inc(&init_mm.mm_count);
         current->active_mm = &init_mm;
-        if (current->mm)
-                BUG();
+        BUG_ON(current->mm);
         enter_lazy_tlb(&init_mm, current);
 }