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Diffstat (limited to 'arch/x86/kernel/ftrace.c')
-rw-r--r--arch/x86/kernel/ftrace.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 382eb2936d4..a93742a5746 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -437,18 +437,19 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
437 return; 437 return;
438 } 438 }
439 439
440 if (ftrace_push_return_trace(old, self_addr, &trace.depth,
441 frame_pointer) == -EBUSY) {
442 *parent = old;
443 return;
444 }
445
446 trace.func = self_addr; 440 trace.func = self_addr;
441 trace.depth = current->curr_ret_stack + 1;
447 442
448 /* Only trace if the calling function expects to */ 443 /* Only trace if the calling function expects to */
449 if (!ftrace_graph_entry(&trace)) { 444 if (!ftrace_graph_entry(&trace)) {
450 current->curr_ret_stack--;
451 *parent = old; 445 *parent = old;
446 return;
447 }
448
449 if (ftrace_push_return_trace(old, self_addr, &trace.depth,
450 frame_pointer) == -EBUSY) {
451 *parent = old;
452 return;
452 } 453 }
453} 454}
454#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ 455#endif /* CONFIG_FUNCTION_GRAPH_TRACER */