1 files changed, 4 insertions, 6 deletions

diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index ac151399ef34..1995c1712fc8 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -95,7 +95,6 @@ EXPORT_SYMBOL_GPL(s390_handle_mcck);
 static int notrace s390_revalidate_registers(struct mci *mci)
 {
         int kill_task;
-        u64 tmpclock;
         u64 zero;
         void *fpt_save_area, *fpt_creg_save_area;
 
@@ -214,11 +213,10 @@ static int notrace s390_revalidate_registers(struct mci *mci)
                         : "0", "cc");
 #endif
         /* Revalidate clock comparator register */
-        asm volatile(
-                "       stck    0(%1)\n"
-                "       sckc    0(%1)"
-                : "=m" (tmpclock) : "a" (&(tmpclock)) : "cc", "memory");
-
+        if (S390_lowcore.clock_comparator == -1)
+                set_clock_comparator(S390_lowcore.mcck_clock);
+        else
+                set_clock_comparator(S390_lowcore.clock_comparator);
         /* Check if old PSW is valid */
         if (!mci->wp)
                 /*