diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 5b1e0edacb84..52bbd27e93ae 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -224,7 +224,7 @@ static void showacpu(void *dummy)
 
 	spin_lock_irqsave(&show_lock, flags);
 	pr_info("CPU%d:\n", smp_processor_id());
-	show_stack(current, NULL);
+	show_stack(NULL, NULL);
 	spin_unlock_irqrestore(&show_lock, flags);
 }