1 files changed, 3 insertions, 4 deletions

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index ee57a42e6e93..4890ac6d7faa 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1595,10 +1595,9 @@ static void stop_run(struct shutdown_trigger *trigger)
 {
         if (strcmp(trigger->name, ON_PANIC_STR) == 0)
                 disabled_wait((unsigned long) __builtin_return_address(0));
-        else {
-                signal_processor(smp_processor_id(), sigp_stop);
-                for (;;);
-        }
+        while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy)
+                cpu_relax();
+        for (;;);
 }
 
 static struct shutdown_action stop_action = {SHUTDOWN_ACTION_STOP_STR,