s390: stack address vs thread_info

[cascardo/linux.git] / arch / s390 / kernel / dumpstack.c

diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 69f9908..6693383 100644 (file)
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -78,14 +78,10 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
        sp = __dump_trace(func, data, sp,
                          S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
                          S390_lowcore.async_stack + frame_size);
-       if (task)
-               __dump_trace(func, data, sp,
-                            (unsigned long)task_stack_page(task),
-                            (unsigned long)task_stack_page(task) + THREAD_SIZE);
-       else
-               __dump_trace(func, data, sp,
-                            S390_lowcore.thread_info,
-                            S390_lowcore.thread_info + THREAD_SIZE);
+       task = task ?: current;
+       __dump_trace(func, data, sp,
+                    (unsigned long)task_stack_page(task),
+                    (unsigned long)task_stack_page(task) + THREAD_SIZE);
 }
 EXPORT_SYMBOL_GPL(dump_trace);