Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

[linux.git] / arch / s390 / oprofile / backtrace.c

diff --git a/arch/s390/oprofile/backtrace.c b/arch/s390/oprofile/backtrace.c
index fe0bfe370c4534a1ab5ceac19d54372390e19289..1884e17595294bbfafdcaf8e183fd80e40d8ea48 100644 (file)
--- a/arch/s390/oprofile/backtrace.c
+++ b/arch/s390/oprofile/backtrace.c
@@ -54,12 +54,13 @@ __show_trace(unsigned int *depth, unsigned long sp,
 
 void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
-       unsigned long head;
+       unsigned long head, frame_size;
        struct stack_frame* head_sf;
 
        if (user_mode(regs))
                return;
 
+       frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
        head = regs->gprs[15];
        head_sf = (struct stack_frame*)head;
 
@@ -68,8 +69,9 @@ void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
 
        head = head_sf->back_chain;
 
-       head = __show_trace(&depth, head, S390_lowcore.async_stack - ASYNC_SIZE,
-                           S390_lowcore.async_stack);
+       head = __show_trace(&depth, head,
+                           S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
+                           S390_lowcore.async_stack + frame_size);
 
        __show_trace(&depth, head, S390_lowcore.thread_info,
                     S390_lowcore.thread_info + THREAD_SIZE);