Merge tag 'io_uring-6.2-2023-01-27' of git://git.kernel.dk/linux

[linux-2.6-microblaze.git] / arch / loongarch / kernel / process.c

diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c
index c583b1e..edfd220 100644 (file)
--- a/arch/loongarch/kernel/process.c
+++ b/arch/loongarch/kernel/process.c
@@ -191,20 +191,14 @@ out:
 
 unsigned long __get_wchan(struct task_struct *task)
 {
-       unsigned long pc;
+       unsigned long pc = 0;
        struct unwind_state state;
 
        if (!try_get_task_stack(task))
                return 0;
 
-       unwind_start(&state, task, NULL);
-       state.sp = thread_saved_fp(task);
-       get_stack_info(state.sp, state.task, &state.stack_info);
-       state.pc = thread_saved_ra(task);
-#ifdef CONFIG_UNWINDER_PROLOGUE
-       state.type = UNWINDER_PROLOGUE;
-#endif
-       for (; !unwind_done(&state); unwind_next_frame(&state)) {
+       for (unwind_start(&state, task, NULL);
+            !unwind_done(&state); unwind_next_frame(&state)) {
                pc = unwind_get_return_address(&state);
                if (!pc)
                        break;